Simplify: [ (-13) ^8: (-13) ^5] - [ (-13) ^5: (-13) ^3]

What is the exact circumference of a circle with a radius of 17 mm?

What is 4/5 (20x-10) ?

Penny has made a pattern of shapes on her bedroom walls. She drew a rectangle, 2 circles, a rectangle, and then 2 more circles until she drew 24 circles. How many shapes did she draw in all?

An airplane flies at a constant speed. It can travel a distance (d) of 1,800 kilometers in 2 hours (t).

A school will have a fall festival if at least 40 percent of the 500 students plan to attend in order for the school to have the festival

The length of a rectangle is three times as long as the width. Find the dimensions if he perimeter is 72 inches

Which is bigger 1/4 or 3/20

The table shows the time Merrida spent driving and the number of miles she drove. She drove the same number of miles each hour.

Find the product. -7 (8 + k) -56 + 7k -7k - 56 -7k + 56

What is the value of x in the inequality 7+2x/5-3