Ann earned $3 an hour for babysitting and $4 an hour for gardening. If she worked 5 hours babysitting and 3 hours gardening. How much money will she have made in the week?

I'm terrible at math any here is appreciated.

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.

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