Final answer:
To find h(t) + g(t), substitute the expressions for h(t) and g(t) into the equation and simplify to get 73 + t.
Step-by-step explanation:
To find h(t) + g(t), we need to substitute the expressions for h(t) and g(t) into the equation. h(t) = 72 - 3t and g(t) = 4t + 1. Therefore, h(t) + g(t) = (72 - 3t) + (4t + 1).
To simplify, combine like terms: h(t) + g(t) = 72 + 1 - 3t + 4t.
Next, combine the constants and coefficients of t: h(t) + g(t) = 73 + t.
So, the expression h(t) + g(t) simplifies to 73 + t.