Given an arithmetic sequence with a7=19 and a12=54 find a15

A. 61

B. 68

C. 75

D. 82

If 12 cubic units fill the bottom layer of a box, and the box holds 3 layers, what is the volume of the box?

Evaluate (b+c) if a=2, b=-5 and c = - 3

The Mississippi River is the second longest River in the United States, second only tho the Missouri River. The Mississippi River is about 23/25 the length of the Missouri River.

Which option best classifies Lara's statements?

I have a right angle showing 1/6 how do I figure out what the rest of it equates to

What can each term of the equation be multiplied by to eliminate the fractions before solving

Find the missing number in the following pattern explain your reason 12,24, 72, and 288,

How to find the Base and height of the triangle

Lita estimates she will read 24 books during the summer. She actually reads 9 books. what is the percent error of her estimate?

We mathematical induction to prove the statement is true for all positive integers n. 8+16+24 + ... + 8n=4n (n+1)