Which of the following numbers must be added to complete the square in the equation below?
x^2 +9x+15 = 11
A.-81/4
B.9/2
C.81/4
D. 81

The bake stars picked 907 apples last weekend at a local orchard they made caramel apples and sold them in the bakery in trays of 6

Me. i can't figure out this question. give an explanation too. .

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?