How do i solve a quadratic equation like this: x squared minus 9x = -14?

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the sunflower? ? plz write a proportion to solve i will give you 100 points

The probability brenda will recieve a telemarketing call is 15%. if she gets 20 calls a day, how many can she expect to be telemarketing calls?