The equation of a line containing one leg of a right triangle is y = –4x. Which of the following equations could represent the line containing the other leg of this triangle since the two legs are perpendicular?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

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

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.