I think you have to multiply or divide, I don't remember
You just divide the distance travelled by the time like so: 145mi/2.5h and get 58mph. You can convert the 145mi into meters and 2.5h into seconds (145mi is approximately 233345m; 2.5h is 9000 seconds) and get an approximate speed of 26m/s if you want to convert to SI units.
Answer:
80
Step-by-step explanation:
<u>Answer:</u>
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So, I don't know how other teachers taught you, but I have a trick.
<u>Step-by-step explanation:</u>
<u />
Step 1:
Solve 
= 34325898917194100000
Step 2:
Now put 34325898917194100000 under 1, like this:

<em>Note: Whenever you have a negative power, the result of the exponent will always be a fraction under 1.</em>
<em />
Step 3:
Add the negative:
becomes:

Your answer is 
I hope this helps!
<h2><u>
PLEASE MARK BRAINLIEST!</u></h2>
You have to add 10 last.
divide 75÷8 and then add 10