A store sells jump rope cost the same amount . During a sale the store reduces the price of each jump by $1.90. Marc spends $12.78 on 2 jump ropes at the sale price . What was the price of 1 jump rope before the sale ? Enter the answer in the comments

a

step-by-step explanation:

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94

answer:   y=2x-3

step-by-step explanation:

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a