Question

Theo budgets $154 for karate classes. He buys a karate uniform, called a dogi, for $12. If it costs $8 to attend each karate class, which inequality below represents the number of classes. c, that Theo can take?

Answer 1

For this case, the first thing we must do is define a variable.
 We have then:
 c: the number of classes
 We write now the inequality that represents this problem:
 8c + 12 <= 154
 Answer:
 An inequality that represents the number of classes. c, that Theo can take is:
 8c + 12 <= 154