Answer:
16t + 5b
Explanation:
Cafe : Kurt would get $16 for 1 hour (1 × 16), $32 for 2 hours (2 × 16), etc. so he would earn $16t for t hours.
Babysitting: Kurt would get $5 for 1 hour (5 × 1), $10 for 2 hours (5 × 2), etc. so he would earn $5b for b hours.
∴ The expression is 16t + 5b
Hope this helps!