7*2= $14 ( apples )
8*1.6= $12.8 ( chicken )
$14+$12.80= $26.80 ( total )
you wouldn't have enough money if you had only a 20$ bill
unless you spent 20$ bill at each station making you have 40$ and you would have $13.20
We know, that when d₁ and d₂ are diagonals, then area of rhombus is:

In this case we have:

so the area:
A = lw
A= 45 unit²
l= w-4
45= (w-4)w
45=w²-4w
w²-4w-45=0
(w-9)(w+5)=0
w=9, -5 so 9 is the width
l=9-4 =5 is the length
A: X•9.50=profit
B: 24•9.50=$228
C: 209÷9.50=22 shirts