SA=4pier^2

Solve for pie

r^2 is r to the second power.

Can someone show me how to do this?

3. Which ordered pair is a solution of the equation y = x - 3? (-2, 5) (-5, 2) (2, 5) (5, 2)

Belle is 450 kilometers north of her exit on a freeway. She is driving at a constant velocity of 50 kilometers per hour to the south. How long will she have to drive to get one-third of the way to her exit

Henry took a survey to determine how many rooms were in each house in his neighborhood. He created the histogram from his data. What is the range of rooms in Henry's histogram?

You can buy jars of the same jam in two sizes. Large jar - 440g for £1.54 Small jar - 340g for £1.26 By considering the price per gram, work out which jar is best value for money. Working must be shown.

Light energy travels in (A) long strings (B) short strings (C) bursts (D) waves

A rectangle is twice as long as it is wide. it's area is 72 square units. Find the length of each side

Andrea built a circular barbecue pit with a circumference of 9 feet. She wants a rod to go across the pit to use for a rotisserie. The rod must go from one edge of the pit to the other, passing through its center.

How to find which cereal has the higher ratio of protein

Great a word problem for x+2=3x-8

21 is what percent less than 35?