How to turn 13 out of 40 into a fraction

A spherical balloon is inflated with gas at the rate of 300 cubic centimeters per minute. How fast is the radius of the balloon increasing at the instant the radius is 70 centimeters?

Lannie order 12 copies of the same book for his book club members to build cost $19 each and the order has a $15 shipping charge what is the total cost of lannie's order

Who is the person that made the Pythagorean theorem?

What's the perimeter of a square 22 M by 27 m

Samantha had 75.36 to spend on his video games. If each cost 12.56 including tax, how many games can she buy

How many 2/3 are in 1?

True or false? Younger riders are three as likely as older riders to prefer wood frame coasters

The volume of a cube is 27 cubic inches. What is the length of one edge of the cube?

Solve the equation x^3+2x^2-5x-6=0

Suppose y varies directly with x and y = 14 when x = - 4 what is the value of y when x = - 6