What is the mean of this

15, 16, 15, 13, 19, 20, 21

what is the answer?

A: 15

B: 16

C: 17

D: 18

What is the inverse of the following condition? If n is the sum of two even numbers, then n is even.

My divisor is 6. I am less than 60. I am greater than 8X6. I have no remainder. What dividend am i?

Give an example that shows why you need to reverse the sign when dividing or multiplying an inequality by a negative number.

Araceli's curtain company is making curtains for a local hotel. She wants each curtain to be 48 inches long. At the fabric store, fabric is sold by the foot.

Last week at a festival, a man sold three times as many tie-dyed t-shirts as silk screen shirts, he saw the hundred for t-shirts altogether how many tie dye shirts did he sell

How to substitution math work

Tyler is 5 years younger than three times his cousin Lejla's age. Tyler is 40 years old. Let l represent Lejla's age.

14. a. Find the prime factorization of 180. b. Explain why every natural number with a zero in the ones place is a composite number.

What is the amount of carpet needed in square yards if the room is 12 feet x 15 feet?

Jessie wants to save the same amount of money each week for a trip. He needs 3,060. if the trip is 36 weeks away, how muchmoney should Jessie save each week?