Pls help quick fast

Question

Monica deposits

​$400

into a savings account that pays a simple interest rate of

4.2​%.

Paul deposits

​$500

into a savings account that pays a simple interest rate of

3.6​%.

Monica says that she will earn more interest in 1 year because her interest rate is higher. Is she​ correct? Justify your response.

Answer 1

400 at 4.2% for one year yields $16.80 in interest

400(.042) = 16.8

500 at 3.6% yields $18.00 in interest

500(.036) = 18

she's wrong 18>16.8

she gets $1.20 less in interest

but she does earn more in interest per dollar invested

she earns 4.2 cents per dollar invested

he earns 3.6 cents per dollar invested

she earns 0.6 cents per dollar more in interest