What is the surface area of a cube if each edge has length 3.5 ft? Show your work.

8 ⋅ 32 + 3 (the 2 is an exponent)

An adult ticket to an exhibition costs $5 while a child's ticket costs $2. If the number of children going to the exhibition was 3 more than the number of adults and a total amount of $20 was spent on the tickets.

Which of the following expressions represents a function? a. x2 y2 = 9 b. { (4, 2), (4, - 2), (9, 3), (9, - 3) } c. x = 4 d. 2x y = 5

A high school has 438 students, with about the same number of males as females. Describe a simulation to predict how many of the first 50 students who leave school at the end of the day are female.

The 3 inside angles of a right angled triangle are in the ratio 7; 18; 11. The smallest angle is 35. work out angle ab b c

Travis and his three friends went to dinner to celebrate graduation. The guys decided to divide the bill evenly. Each person paid $15. Which equation can be used to find the total amount of the bill? x/3=15 15x=3 x/4=15 15x=4

A parabola has the equation y=x^2-x-6. A line has a slope 2 and y-intercept - 2. Think of the system of equations that you can create with this information. What is a good strategy to use in order to solve the system or equations?

Evaluate a2+ab-b2+5 when a=2 and b=3

Which of these is a two-step equation? A. X+9 = 21 B. x = 11 + 2 C. 2x+9 = 21 D. x/3=9

What is the solution to y=2/5x-3 and x=-10