You have a $50 gift card to go shopping for school supplies. You buy 2 packs of pencils. 5 notebooks, 6 folders, 1 pack of pens,3 packs of paper, 1 pack of highlighters, and 2 binders. a) What number represents the change in the value of the gift card after buying your school supplies?
b) What percentage of the value remains on your gift card?

Awrestling tournament begins with 128 competitors. in the first round, each competitor has 1 match against another wrestler. the winner of each match moves on to the next round until there is a winner. write a sequence in which the terms represent the number of players still in the tournament at the end of each round. describe the sequence? how many rounds are in the tournament?

The probability of winning something on a single play at a slot machine is 0.11. after 4 plays on the slot machine, what is the probability of winning at least once

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?