Please show me the step by step and the formula

Question 1:

Keri Weinberg earns both $10/hour, $10 for every sale of Product A, and $14 for every sale of Product B. During the most recent week, she worked 54 hours and sold 26 units of Product A and 41 units of Product B.

Question 2:

Samuel Worthy earns both $7.25/hour and a 10% commission on all sales. During the most recent week, he worked 42 hours and made total sales of $11,000.

Thank You!