What is the simplified form of this expression?

7a2 + 10a − 3a − 2a2

Estimate each quotient. show the compatible numbers you use. 0.02848 ÷ 0.00579

The expression 6x2 gives the surface area of a cube, and the expression x3 gives the volume of a cube, where x is the length of one side of the cube. find the surface area and the volume of a cube with a side length of 6m

If n stands for number sold and c stands for cost per item, in which column would you use the formula: ? a. column d c. column f b. column e d. column g