The answer is $273.65. %7 tax on $294.25 is $20.60 subtract from $294.25 and voila! p.s... (a great tax [A P P] called Taxealo. Check it out you won’t be sorry) ;)
*If you need me to do #5, DM me!
3. The area of a triangle can be given by (just plug and chug as always):

The area of the triangle is
6ft².
4. I will divide into a triangle and a rectangle (because the actual equation for the area of a pentagon requires it to be a perfect pentagon). Let's do the triangle first (height is 3 because you subtract 12 from 15):


Now we just add them:

So, the area of that pentagon is
108m².
5. You are actually wrong on this one because the area of a triangle is:

So, just halve your answer and it will be correct.
6. We can just split it into 4 triangles of equal area and then multiply the area of 1 triangle by 4 to get the total area. Let's do just that:

Multiply by 4 to get total area:

So, the area of the given rhombus is
25cm².
Answer:
You will get 16 Large envelopes
<u><em>The answer is 119%.</em></u>
<u><em>1.19=119%</em></u>
<u><em>Hope this helps!</em></u>
<u><em>:)</em></u>