Please help! No links and no just saying random stuff. Center:_

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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

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

Three times the sum of a number and seven is negative thirty-six. what is the number?