Simplify the expression. 6nx + 7p - 14p + 2nx - 6x
A. 8nx - 7p - 6x
B. 4nx + 21p-X
C. -13nx – 16p + 8x
D. -8nx + 28p - 4x
I need help!

Mary works for a company that ships packages and must measure the size of each box that needs to be shipped. mary measures a box and finds the length is 7 inches, the width is 14 inches, and the height is 15 inches. what is the volume of the box? [type your answer as a number.]

What is the base of 1/9 to the power of 2

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?