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

What is the formula for volume of a square?

ou have just received an inheritance of $28,000 and would like to invest it into an account. The bank offers two investment plans, one for 4 years at 5.8% compounded annually and another for 3 years at 7.083% compounded annually.

What is 100,203 in word form

The floor measurements of MR Tan's bathroom is 4m by 10m. how many 0.5m are needed to cover the floor of bathroom?

Ms. Wooldridge walks laps around her pool for exercise each day. She walks at a constant rate of 30 seconds per lap. It takes her 46 steps to walk one full lap. Each step is approximately 1 foot. How many minutes will she walk in one mile?

Jason tossed a fair coin 3 times. What is the probability of getting a head and two tails in any order?

For breakfast, Sarah can choose eggs, granola, or oatmeal as a main course, and orange juice or milk for a drink. Sarah says that the sample space for choosing one of each contains 3 to the 2nd power = 9 outcomes, What is her error? Explain.

What are factors and can you give me an example of an expression and it's factors

Which number is between 1/6th and 1/4th

What's the value of 42:1/7? (show work) A. 1/294 B. 1/6 C. 6 D. 294