Question

Help me, please! For 20 pts

Answer 1

first square = 3.6 x
`10^(-1)`

Explanation:

They are all multiplying so there is no need for parenthesis

(3.8 * 10³) * (9.4 *
`10^(-5)`)

3.8 * 10³ * 9.4 *
`10^(-5)`
35.72 *
`10^(-2)`

35.72 =~ 36

Everytime you elevate a number, it's the same as...
3 * 10² = 100 * 3 = 300

0.3 * 10³ = 1000 * 0.3 = 300

so then...

36 * 
`10^(-2)` = 3.6 *
`10^(-1)`

Answer 2

First box ⇒ 3.6 x 10^-1

Second box ⇒ 3.1 x 10^6

Third box ⇒ 5.3 x 10^-6

Fourth box ⇒ 4.2 x 10^-1

Explanation:

I used a calculator and solved it :)