Mary spent a total of $292.04 for a party. she spent $200.21 on food, plus an additional $30.61 for each hour of the party. how long was the party?

3 hours

Step-by-step explanation:

$292.0-$200.2=$91.80

91.80 divided by 30.61 = around 3

3 hours

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.