Question

I need help plz sorry

Answer 1

The andswer would seem to be b 2.25

Answer 2

a)

`(4.3 * {10}^(5) )(1.6 * {10}^(4) ) = 6.88 * {10}^(9)`

b)

`(2.25 * {10}^(3) )(5.8 * {10}^(6) ) = 13.05 * {10}^(9) = 1.305 * {10}^(10)`

I hope I helped you ^_^