Estimate and then find the difference for 502-317

A concrete pillar has the shape of a cylinder. It has a radius of 4 meters and a height of 7 meters. If concrete costs $94 per cubic meter, how much did the concrete cost for the pillar? Use 3.14 for π, and do not round your answer.

Kala's penny bank is 1/2 full. After she removes 200 pennies, it is 3/10 full. How many pennies can Kala's bank hold?

Lea's car travels an average of 30 miles per gallon of gas. If she spent $20.70 on gas for a 172.5 mike trip, what was the approximate cost of gas in dollars per gallon?

Solve cot x + 2cot x * sin x = 0 for U^ < = x<=180

Which of these two regular polygons has the larger exterior angle square or pentagon?

How do you determine between which 2 numbers a fraction lies

What are the key aspects of the graph of f (x) = x2 - 62, where b is a real number?

Scientific notation Express this number in standard form. 1.304 x 107 = ?

Erick's dog house has an area of 15 feet. What is the perimeter of the house

Whats the gcf and sum of 49+63