X^2 + ( square root of 7)^2 = 55^2 what is x

x=54.9363

Step-by-step explanation:

x^2+7=55^2                 square root and exponent cancel outx^2+7=3025                55*55=3025x^2=3018                     subtract 7 from both sidesx=√3018                      take square root of both sidesx=54.9363

Answer for 2: his profit would be $2.88 explanation: you have to first multiply 72 and 0.12 together to get $8.64 once you do that you know how much money the shopkeeper made from selling the candy bars individually. so you have to do 8.64-5.76=2.88 hope that ; )answer for 3: yeah i’m sorry i have no idea what number 3 is. i’m sorry i couldn’t with that.