Which graph appears to show the solution to a system of equations as being (-4.5, 4)?

I'll give brainliest if you answer right : )

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?

At a book fair, joe bought 24 books at 3 for $5 and had $2 left. how much money did he have at first?