xI 8. TABLE TOOLS e05ch10_grader_a1_Float_HolmesMatt - Excel ? YO16_XL_CH10_GRADER_PS2_AS - Extreme H20 1.5_Instructions - Word ?

Hello!

I am stuck on #4,5,6, and 7, but I'm assuming that counts as multiple questions... so I guess I'm confused as to how the answer for Total Variable Costs for my teacher = $-48056? Can you give me a formula for calculating the total variable costs in D17? Because as far as I'm aware the total variable costs is D15+D16.

Please help!