Answer:
h(10) would mean that we are locating the height of the balloon when it has been in the air for 10 minutes. It would be 60 ft high.
Step-by-step explanation:
To find the height, start by putting 10 in for t in the equation.
h(t) = 210 - 15t
h(t) = 210 - 15(10)
h(t) = 210 - 150
h(t) = 60
