The sales tax is $56 on the purchase of a dining room set for $1400 Find the sales tax rate.

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

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)

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.