El equivalente de 4/6

Aiden buys two bags of chips at $1.09 each and a 20 ounce soda for $1.20 at the gas station. he knows that the state tax is 5.5. how much change will he receive from a $5 bill?

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

X+y=-4 x-y=2 use elimination with adding and subtraction