+65 Annie needs $30 to buy a coat. She has saved $12 and plans to work as a babysitter to earn $6 per hour. Which inequality shows the minimum number of hours, n, that Annie should work as a babysitter to earn enough to buy the coat?
A. 12 + 6n ≤ 30, so n ≤ 3
B.12 + 6n ≥ 30, so n ≥ 3
C.6n ≥ 30 + 12, so n ≥ 7
D.6n ≤ 30 + 12, so n ≤ 7
+1306 Annie's total earnings from her initial savings, $12, and from babysitting should be equal or more than 30. Annie's total earnings from babysitting may be expressed as $6n. The inequality should be,
12 + 6n ≥ 30
Solving for x,
6n ≥ 30 - 12
6n ≥ 18 ; n ≥ 3
Hope that helps!
