System : substitution

y=x+9
3x+8y=-5

You are looking at two area rugs for your bedroom. one is a square with side lengths of 6.3 feet. the other is a rectangle that is 4.8 feet by 8.2 feet. which rug will cover the greatest area? how much more area will it cover? with work plzz and u so much

Which letters from the table represent like terms? a and b b and c a and d b and d

Erik buys 2.5 pounds of cashews. if each pound of cashews costs $7.70, how much will he pay for the cashews?