Which real number property justifies the equivalence: 5.x +3 -81 +2 = 5.x + 8x+3 - 2 If 3x - 7 = 5 for some value of x, then what does the expression 6x-17 equal for the same value of x?

The cash price of a television is $580.the hire-purchase price of the television is $865.the hire-purchase price is an initial deposit of n% of the cash price and 6 equal monthly payments of $120.find the value of n.

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

Askateboard ramp is in the shape of a right triangle what is the height of the ramp