Which equation represents a line with a slope of -2? PLEASE ITS ERGENT BARBS

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?