The miles previously covered by algae is 6 miles
let m represent the miles of the coastline covered by algae before the clean-up
fraction of miles covered after the clean-up =
x m = 
miles covered after the clean-up = 2 miles
= 2 miles
to determine the value of m, make m the subject of the formula.
To do this, take the following step :
multiply both sides of the equation by 2
m = 2 miles x 3
m = 6 miles
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Just subtract 6 from 18 and the answer is twelve 12.
You add five to each product when you multiply numbers by five. if 5x10 is 50, 5x11 is 55. so 5x 12 would be 60 because 55+5=60
If you increase the price 9 times which is 5 dollars more each time you get only 30 students that are willing to buy it. Any more increases will lead to no one wanting to buy it.
Answer:
no she does not have enough floir for baking