Select the correct answer.

How can you express (15 + 30) as a multiple of a sum of whole numbers with no common factor?

A. 2 x (7.5 + 15)

B. 3x (5 + 10)

C. 5x (3+6)

D. 15 x (1 + 2)

What is the exact value of the expressions sqrt 180 - sqrt 125 + sqrt 5? Simplify if possible. A. 2 sqrt 2 B. 12 sqrt 2 C. 2 sqrt 5 D. 12 sqrt 5

There are (7^13) ^3 ⋅ 7^0 strawberries in a field. What is the total number of strawberries in the field? A. 1 B. 7^16 C. 7^17 D. 7^39

Ms. Keller is grading semester projects. In the past two hours, she has graded five projects. At this rate, she will grade _ project in seven hours at a rate of _ project per hour. Fill in the blank

True or false The sum of two odd numbers is even

A string of decorative lights is 22 feet long. The first light on the string is 16 inches from the plug. The lights on the string are spaced 4 inches apart. How many lights are there on the string?

Find the radius of a circle with a circumference of 78.5 ft

A sample of 100 independent random numbers is taken from this distribution, and its average is used to estimate the mean of the distribution. What isthe standard error of this estimate?

Rachel offers to go to the bakery to buy cookies and cupcakes for her coworkers. She buys a total of nine treats for $35.75. If cookies cost $3.75 each and the cupcakes cost $4.

Round to the nearest 10 37.6

It costs n dollars to rent a bike. Write an expression to represent the cost of renting the bike for 3 days?