Please answer this for me I need it it's due at midnight

How to use order of operation in 20 divide by 4 multiply 5 = 1

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 8 = -6x a. –7.12, 1.12 b. 7.12, –1.12 c. 7.12, 1.12 d. –7.12, –1.12

What is the value of x in the equation7x+2y=48 when y=3