Assume that the radius r of a sphere is expanding at a rate of 40 cm/min. The volume of a sphere is

V = 4/3πr^3 and its surface area is 4πr^2. Determine the rate of change in surface area when r = 10 cm.

Find the mean, median, and mode of the data set. Round to the nearest tenth Test scores on a math test: 88, 89, 65, 62, 83, 63, 84, 63, 74, 64, 71, 82, 66, 88, 79, 60, 86, 63, 93, 99, 60, 85

Simplify the rational expressions. State any excluded values. Show your work. (x-2) / (x^2+3x-10)

What is the subsitution for 2x=12 & x-5y=-29

Becky swims of a mile each day. How many miles does she swim in 5 days?

Solve for x: 7x - 3 = 11.

A mom buys a jersey and a water bottle for each of the ten players on the dodgeball team. Each water bottle cost $11.60. The mom spends a total of $464 For jerseys and water bottles.

A division equation with the answer of - 20

Put 12/15,3/5,7/15,3/7 in smallest to greatest order

Solve the equation. |x + 7| = 12 Select one: a. {-19, - 5} b. {-19, 5} c. {-5, 19} d. {5, 19}

The water level of a lake fell by 1 and one half in. during a 1 and two thirds -week-long dry spell. Simplify the complex fraction below to find the average rate at which the water level changed every week.