So here you are trying to find out what times .30 (30%) subtracted the original price will give you 18.75. Because it is 30% discount you want to use 70% (.7) so that you can find the price before not the price after.
so .7(x) = 18.75
Which you then divide and then get 26.79 dollars.
Answer:
Option C.
Step-by-step explanation:
The given similarity statement is

We need to find the side which is corresponds with ED.
According to the given similarity statement the pairs of corresponding sides are:



Since, YX is corresponds with ED, therefore, the correct option is C.
Answer:
2.1/√55
Step-by-step explanation:
simga divided by sample size
Solve for r.
You want to get r by itself on one side on the equal sign.
bh + hr = 25
Subtract bh from both sides.
hr = 25 - bh
Divide h on both sides.
r = 25 - bh / h
The two h's cancel each other out.
r = 25 - b
Hope this helps!