A friend gave Ms. Morris a gift card for a local car wash. The table shows the linear relationship between the value left on the card and the number of car washes she's used. Number of car washes, x 8 12
Amount left on card ($), y 18 12

12. Construct a linear function to model this relationship.
13. What was the value of the gift card Ms. Morris received?
14. After how many car washes will the gift card run out?

Larger pets need to be transported in larger portable kennels. using a graphing calculator and the relationship between the width, length, and height, find the dimensions of a portable kennel whose volume is 7.4 ft3. the dimensions of a portable kennel can be expressed as width x, length x + 0.4, and height x − 0.2? what are the dimensions of a portable kennel with a volume of 7.4 ft3? use a graphing calculator to solve. round the dimensions to the nearest tenth.