What is the answer for: factorise 30 +66x if u don’t mind x

Agrocery sells green apples and red apples. on monday , the store put 500 of each kind of apple on display. that day, the store sold 42 red apples and 57 green apples.on tuesday the store sold 87 red apples and 75 green apples. on wednesday, the store sold 29 red apples and 38 green apples

Carrie started with 12 ounces of water when she begin to walk. when she was finish walking she had 2 1/4 ounces of water left. how much did she drank

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy