marcus went on a diet and lost weight. he now weighs 197.4 pounds, which is 84% of his
original weight. how much did he weigh at the beginning of his diet

What is the number 321,000,000 in scientific notation? also what is the number? ?

What is the value of the expression below? 148+(-6)| + |– 35= 7|

Maurice has 54 fewer comic books than rebecca.they have 130 comic books together .how many comic books are in maurices collection ? how many comic books are in rebeccas collection