The sum of two numbers is 91. The greater number is 7 more than the smaller number. Which equation can be used to solve for the smaller number? x(x + 7) = 91
x(x − 7) = 91
x + (x + 7) = 91
x − (x + 7) = 91
Question 10(Multiple Choice Worth 1 points)
(03.05 MC)

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?

12 + 6n ≤ 30, so n ≤ 3
12 + 6n ≥ 30, so n ≥ 3
6n ≥ 30 + 12, so n ≥ 7
6n ≤ 30 + 12, so n ≤ 7
Question 11(Multiple Choice Worth 1 points)
(03.05 MC)

Cindy works in a cake shop and earns $42 per day. She earns an extra $4 for each cake she sells. If Cindy wants to earn at least $50 per day, which inequality shows the minimum number of cakes, n, that she should sell?

42 + 4n ≤ 50, so n ≤ 2
42 + 4n ≥ 50, so n ≥ 4
42 + 4n ≥ 50, so n ≥ 2
42 + 4n ≤ 50, so n ≤ 4
Question 12(Multiple Choice Worth 1 points)
(03.05 MC)

Travis wants to buy some CDs over the Internet. Each CD costs $8.01 and has a shipping cost of $9.95 per order. If Travis wants to spend no more than $50 for his CDs, which inequality shows the maximum number of CDs, p, that he can buy?

9.95p − 8.01p ≤ 50, so p ≤ 2
9.95p + 8.01p ≤ 50, so p ≤ 4
9.95 + 8.01p ≤ 50, so p ≤ 5
9.95 − 8.01p ≤ 50, so p ≤ 6