Use the quadratic formula to find both solutions to the quadratic equation given below

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x). what is the rate of change in erinn's hourly wage per year?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

5,678.321 what place value is the 1 in