Tammy has 328 in her bank account after withdrawing money in her account for new balance was 298 how much money did tammy take out of her bank account

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Plz hurry evaluate the expression a+b where a=8 and b=19

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.