Josh has $25 and he wants to buy some movies. he picks one movie that costs $9.99 and two that cost $5.99 each.

which statement best describes if an exact total or an approximate total should be calculated?

a.
josh must add the exact cost of the 3 movies so he will know if he has enough money to buy the third movie.

b.
josh can round the prices of the movies to the nearest dollar and then add to estimate if he has enough money.