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.

Which mathematical sentence most accurately expresses the information in the problem below? Scott has 6 dogs. If two of them are dobermans, how many are not dobermans? A. 2+6=n B. 6=n+2 C. n-6=2 D. n-2=6

Dominik paid three-quarters of a dollar for a newspaper. Which amount is equivalent to the cost of the newspaper?

Two bottling plants package a certain type of sports drink. Suppose the mean volume of all of this type of sports drinks is 20 fluid ounces. Bottling plant A bottles an average of 50,000 sports drinks per day.

After five tests Allison's average score was 88. After six tests her average score had increased to 90. What was her score on the sixth test?

Do you know the recipe shown below to make fruit punch for a party if Jenna made half a recipe and punch how many quarts of fruit punch did she make

Which sentence correctly forms the plural of the number 5? A. Jasmine's house number has three 5s and a 1. B. Jasmine's house number has three 5s' and a 1. C. Jasmine's house number has three 5's and a 1.

You toss a coin and roll a number cube. Find P (heads and an even number)

Of the original 56 signers of the declaration of independence four of them are present in North Carolina if you selected one sign randomly how likely is it that he represent in North Carolina

Michelle built a fence around her square garden. If Michelle used 72 yards of fencing to enclose her garden, what is the length of each side? 12 yards 16 yards 18 yards 36 yards

Lisa went on a 52km hike. she divided the distance traveled evenly over 4 days. how many meter did lisa walk each day