Find the arc length of a central angle of 90° in a circle whose radius is 4 inches.

Explain the difference between simple interest and compound interest.

A box contains 1414 large marbles and 1111 small marbles. Each marble is either green or white. 66 of the large marbles are green, and 44 of the small marbles are white.

78 books thirty one are on the shelves the rest are still pack in the boxes how many still in the boxes

A rectangular prism has a volume of 120 cm ^3. it's length is 5 cm and it's width is 8 cm. what is the prisms height

Simplify the expression 8+3d-17

An insurance company makes money according to earnings = p (e1) w1 + p (e2) w2, where p (e1) = 0.002641, w1 = - $25,000, p (e2) = 0.997359, and w2 = $193.08. How much does the insurance company earn during the year from this person?

Write an expression that represents the products of q and 5 divided by 2

What digit is in the ten-thousands place in the number 81,473

How to solve 7/9 - 2/3

A scientist is measuring the temperature change and a chemical compound the temperature dropped 11 Fahrenheit per hour from the original temperature after four hours the temperature was 90°F find the compounds original temperature