3x - 0.6 = 1.8 What value of x satisfies the equation above?

x + y = 5
2x = 5
If (x, y) is the solution to the given system of equations, what is the value of y ?

The graph of y = mx + b, where m and b are constants, is shown in the xy-plane.

What is the value of m?

$L equals S square root of 1 minus v squared over c squared end root$
When the speed of an object approaches the speed of light, its length as seen by an observer changes. When the object is stationary relative to an observer, its length is S, and when the same object is moving at speed v relative to the observer, its length is L. The formula above expresses L in terms of S, v, and c, the speed of light. Which of the following gives the speed of the object in terms of the other quantities?

$fraction numerator 4 x plus b over denominator 2 end fraction equals 2 x plus 8$
In the given equation, b is a constant. If the equation has infinitely many solutions, what is the value of b ?

Which of the following is an equation of the line in the xy-plane that contains the points (1, 3) and (5,15)?

$fraction numerator x space plus space 2 over denominator open parentheses x space plus 2 close parentheses squared end fraction$
Which of the following expressions is equivalent to the given expression, where x $not equal to$ -2?

(x³ + x) (x² -x)
Which of the following is equivalent to the given expression?

Aracely can spend up to a total of $20 on streamers and balloons for a party. Streamers cost $1.49 per pack. and balloons cost $4.39 per pack. Which of the following inequalities represents this situation, where s is the number of packs of streamers Aracely can buy, and b is the number of pack of balloons Aracely can buy? (Assume there is no sales tax.)

The function f is defined by f(x) = x² - 5x + 6. What is the value of f (4)?

In the figure shown, line j is parallel to line k and line l is parallel to line m. What is the value of x ?

Interior angles are the angles contained within a shape or the region enclosed by two parallel lines transversely intersected.
¶Interior angles form in two ways in geometry. The first occurs within a polygon, and the second occurs when a transversal cuts parallel lines. Angles are classified into various types based on their measurements. Other angles are known as pair angles because they appear in pairs to exhibit a specific property. Interior angles are one example.
¶Sum, S = (n − 2) × 180°

In the figure shown, line j is parallel to line k and line l is parallel to line m. What is the value of x ?

The table above shows some values of x and their corresponding values of y. Which of the following equations shows a possible relationship between x and y?