Simplify the following polynomial: (3ax +2a - 3a²x) + (3a²x - 5ax - a) + 8a

Tanya has $42 to spend at the dolphin island store. tshirts sell for $7 each and a pair of sunglases sells for $6.tanya buys 3 tshirts. how many pairs of sunglases can she buys with the amount of money she has left

How many grams the dog will eat in 3 days?

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account