I hope this helps you
68,25=(9+12).h/2
2.68,25=21.h
136,5/21=h
h=6,5
Yes that is correct ma dude
We have been given that Sterre charges $35 to file tax returns, but files for free if she only needs the easiest form. Also, she donates $2 to clean water projects per tax return she files.
Further we know that Sterre charged $7,245 and made a donation of $1,242 this year for the tax returns she filed.
Let x be the number of free income tax returns and y be the number of $35 income tax returns.
Therefore, we can set up:

Since she donates $2 for each return that she files, therefore, we can set up:

Therefore,
Sterre filed 414 tax returns for free and filed 207 tax returns for $35.
Hey, I'll be happy to assist you, but I need a picture or diagram with the measurements of the polygon and the poly itself :)