A gas station sells gasoline for $4.10 per gallon Elizabeth has a discount code. Each gallon of gas that she buys she gets $.30 off the original price how much does it cost Elizabeth to buy 9.8 gallons of gasoline?
PLEASE EXPLAIN step by step!

Identify the expression equivalent to 4(x + x + 7) − 2x + 8 − 4 by substituting x = 1 and x = 2.

Solve 17= -13 - 8x and show your work.

Which two properties of equality could zoe use to finish solving for x? the equation is 3x - 4 = -10 for x so a either the addition or subtraction property of equalityb ether the multiplication or division property of equality c ether the addition or division property of equality d ether the subtraction or division property of equality just a simple a b c or d plz.