Merry is certain that every time she parks in the municipal garage it costs her at least $2.25 if the garage charges 25cents plus 25 cents for each half of hour how long is merry cars parked

Answer 1

Let x = the number of 1/2 hours that Merry is parked.

Then .25 + .25x ≥ 2.25

.25x ≥ 2.00

x ≥ 2/(.25) = 2/(1/4) = 8

x ≥ 8

So Merry parks for at least 8 half-hours. 8 half-hours is 4 hours.

So Merry parks for at least 4 hours.