Sarah earns $7.50 per hour babysitting and $5.00 per hour walking dogs. Last week she worked h hours babysitting and twice as many hours walking dogs. Write an expression to show the amount of money Sarah earned last week. Then multiply and combine like terms to write the expression as one term. Original expression:
Simplified expression:

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a

6 adults and 9 children went.

a + c = 15

12a + 9c = 153

12(6) + 9(9) = 153

72 + 81 = 153