7.5?????????? hope you get this right
Q = p(r+s)
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(r+s) (r+s) Divide both sides by (r+s) so you can get the p bu itself this way you get q / (r+s) = p
To find the fee for three weeks, we need to multiply the fee for one week by 3.
7.50 * 3 = 22.5
Subtract:
305 - 22.5 = 282.5
Javier will have $282.50
=50-(50*30%)
=50-(50*0.30)
=50-15
=$35
the new cost would be $35
Let's rewrite the mixed number as a fractions:

Therefore, the total length will be: