Question

Ms. Hernandez is taking her children and their friends to the movies. She will pay $10 for adult ticket and $7 for each child ticket. Ms. Hernandez does not want to spend more than $40. Which inequality can be used to find c, the number of child tickets Ms. Hernandez can purchase?
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Answer 1

Answer: 10 + 7x $\leq$ 40

We can use exclusion method:

A and C  is not correct because Ms Hernandez doesn't want to spend more than 40 dollars --> so it must be less than or equal to 40