Question

Can someone explain step by step process

Answer 1

Explanation:

3*7*10*10*10*10*10*10*10

(5+2=7)(since is multiplication you add)

21*
`10^(7)`=B

2*10*10*10*10*10

4*10*10

(5-2=3)(since is division you subtract)

0.5*
`10^(3)`=c