Does y=3x^2 have an inverse

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

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