Answer:
a)

b)

Explanation:
We are given the following information in the question.
Connor earns $24 working every 1.5 hours.
Thus, we can write the ration for hours to dollars earned as:

We have to find the equivalent ratios.
a) Hours = 8. Let x be the dollars earned.

Thus, she earned $128 in 8 hours.
b) Hours = 12. Let x be the dollars earned.

Thus, she earned $192 in 12 hours.