Tutor I need help what’s the answer

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

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

Mama mia restaurant used 1 2 2 1 ? of their mozzarella cheese making pizza and the remaining 6 4 64 ounces making pasta. how many pounds of mozzarella cheese did mama mia start with?