53.35/11 = 4.85 for 1 key chain
4.85 *4 = 19.40
Answer:
88
Step-by-step explanation:
86 is 98% of 87.755102040816 which rounded to the nearest whole number is 88.
Answer:
The cost of extracting the first 50 tons of copper is $151,000.
Step-by-step explanation:
Start-up costs of $150,000.
For the 50 tons of cooper.

So

1 thousand dollars.
So
$150,000 + $1,000 = $151,000
The cost of extracting the first 50 tons of copper is $151,000.
Answer:
3 miles per hour
Step-by-step explanation:
because he runs 3 mile per hour , for another one hour 3 miles therefore it will be 3 miles per hour