(8.08 x 10^12) - (6.52 x 10^11)

and explain because i have watched many video tutorials and none !

Angela is buying a dress that is on sale for 20% off. if the original price of the dress is $40.00, how much money is angela saving on the dress? a. $0.80 b. $3.20 c. $32.00 d. $8.00

Astore has apples on sale for three dollars or 2 pounds how many pounds of apples can you buy for nine dollars if an apple is approximately 5 ounces how many apples can you buy for nine dollars

Factor the expression using the gcf. the expression 21m−49n factored using the gcf