Deja is a babysitter who charges $5 an hour for the first child and $2.50 for each additional child. how many children does she have to babysit, if she wants to at least $11.50 an hour?

Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

What is the result of adding the system of equations? 2x+y=4 3x-y=6