Answer:
<
Step-by-step explanation:
750,000,000 times 10^5 can be expressed as 7.5 times 
7.55 times 10^13 is greater than 7.5 times 10^11.
Pretty sure that it is 9/7.
222 ..........................................
B. For each hour he works, his earnings go up by $8
<h3><u>The equivalent expression is:</u></h3>

<em><u>Solution:</u></em>
<em><u>Given expression is:</u></em>

We have to find the equivalent expression
We can simplify the above expression using law of exponents
<em><u>Use the following law of exponents:</u></em>

Therefore,

<em><u>Use another law of exponent</u></em>

Therefore,

Thus the equivalent expression is found