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Average salary for a medical assistant is $31,220 which is a 20% income tax bracket how much money would they pay in income tax?

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

The diagram represents the polynomial 4x2 + 23x – 72. what is the factored form of 4x2 + 23x – 72? (4x + 8)(x – 9) (4x – 8)(x + 9) (4x + 9)(x – 8) (4x – 9)(x + 8)