Answer:
It's the 1st one:

Step-by-step explanation:
There is a correct way to do this, but because it's multiple choice you can plug any value, preferably not any negatives, 0 or 1, into the x and then calculate. I plug 2 in for x and got 5 as my answer then I went to the answers and the 1st equaled 5
Answer:
$41.83
Step-by-step explanation:
I believe its 0.89 multiplied by 47 that results to 41.83.
Please correct me if I'm wrong hehe.
Pay close attention to the corners
You can converte them to a common denominator like 6. 1/2 would be 3/6. 2/3 would be 4/6.
Answer:
Unit rate by which the runner completed the marathon is 0.13 miles per minute.
Step-by-step explanation:
A runner competed a marathon of 26.2 miles in 210 minutes.
we can get unit rate by unitary method.
∵ In 210 minutes a runner completes the distance = 26.2 miles
∴ In 1 minute runner will complete the distance = 
= 0.125 miles per minute
≈ 0.13 miles per minute
Therefore, unit rate by which the runner completed the marathon is 0.13 miles per minute.