Two sides of a triangle have lengths 7 and 13.

The third side has a length that is

X= -5because this is a single step equation so you would just have to divide -16 both sides for x to equal your solution

$250 deductible means jane must pay the first $250 of her bill. so the insurance company paid = (80% of bill) - deductible = (0.8 x $2550) - $250 = $2040 - $250 = $1790 and jane's cost is = (bill) - (insurance payment) = $2550 - $1790 = $760