If the area of a circle is represented by A=21π, what is the radius of the circle? round your answer to the nearest tenth

A crayon has a mass of 30 grams. How many crayons can be made with 30 kilograms of colored wax

What is the product of 3.4 * 10-14 and 1.8 * 1028? 6.12 * 1014 9.4 * 1014 5.2 * 1042 6.12 * 1042

Joanne is depositing the money into a bank account. After 3 months there is $150 in th account. After 6 months, there is $300 in the account. Find the rate of change of the account

Madison can lift 200 kilograms with ease. how much is this in pounds

The power 92 is equivalent to 81. What is the value of g-2?

How is adding integers similar to adding whole numbers how is it different?

Preston drew a blueprint of an additional room he is planning to add to his house. On the blueprint, 2 centimeters is equal to 3 feet in the actual room.

Together tom and max have 72 football cards. Tom has two more than four times as many cards as max has. How many cards does Tom have?

The sides of a ladder are parallel. Since the rungs are perpendicular to one side of the ladder, what conclusion can be made? The sides are parallel to the rungs. The rungs are perpendicular to the other side.

Write an equation to represent: three times the sum of four and t is less than forty A) 3 (4 + t) > 40 B) 3 (4 + t) < 40 C) 3t + 4 > 40 D) 3t + 4 < 40