If there is 5 orange marbles predict the number of times an orange marble would be picked if the experiment was completed 60 times.

y= -

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.