Final answer:
Rebecca's monthly earnings are $13,200 and her yearly earnings are $158,400.
Step-by-step explanation:
To find Rebecca's monthly earnings, we can set up a proportion. Let x be her monthly earnings.
We know that 2.5% of her earnings, which is 0.025x, is deposited into her retirement plan. And we also know that $330 is deposited in the plan. So we can set up the following equation:
0.025x = $330
To solve for x, we can divide both sides of the equation by 0.025:
x = $330 ÷ 0.025
x = $13,200
Therefore, Rebecca's monthly earnings are $13,200. To find her yearly earnings, we can multiply her monthly earnings by 12:
$13,200 × 12 = $158,400
Therefore, her yearly earnings are $158,400.