11/18 ~ Test 2 Review (USA02)

Write the two linear inequalities whose solution is shown on the graph.

Richard can buy a KitKat bar for $4, and a Crunch bar for $3. He wants to buy at least 8 candy bars in total but only has $25 to spend. If k and c represent the number of KitKat bars and Crunch bars that Richard will buy, respectively, which of the following systems of inequalities can be used to determine exactly how many of each he could buy?

• a = 343, b = 8
• a = 64, b = 27
• a = 128, b = 3
• a = 81, b = 9

Write an inequality that represents the situation:

A) A rectangular yard with length x and width y. The perimeter is at least 400 feet.

• 2x + 2y < 400

• 4x + 2y < 400