Answer:
Each friend donates $10.
Step-by-step explanation:
If they keep 5% of all donations, 5% of $10 is $0.50 and you lose out on $2.50. With 5 friends, this equates to $10 per person.
Check the picture below.
you can pretty much count those lengths off the grid.
recall that A = 1/2 bh.
2x^3(x+7)(x-7)
Thats the answer for your question!
Do the 15 new people fill the gondola?