The Russian ruble coin has a radius of 10.25 mm. What is the circumference in terms of pi?

The answer is 20.5 Pi

Answer for C=2pie r

2 (3x) + (x + 10) It needs to be simplified

A straw for a box drink is 4 1/8 inches long and costs $0.015 to make. The straws are laid end to end in a line until they extend 123 3/4 inches. How many straws are in the line and how much do they cost?

The total number of marbles is 70 and there are 6 times as many blue marbles as yellow marbles. how many red marbles are in the bag?

How do you convert fractions to decimals?

X = a) 50 b) 100 c) 25

How do you subtract a positive fraction from a negative fraction?

Simplify: 4.16-1.1*2.6+0.7 squared

If a typist can type 350 words in 7mins, how many words can she type in 1Min

Which symbol can be placed in the blank of 5.01 5.010