Which of these numbers have exactly two factors 7 8 9 10 A B C D

9/10 divide by -3/15 as a mixed number

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?