He earns $44 dollars. he charges $2 dollars for every bag.
This is the hardest question I've answered all day.
One way to find a sub-total is by *simply* adding everything together, and a example would be below, buy yeah, you just add everything together.
For example:
Cookies (item # 594993) $2.98
Cake (item # 4354533) $4.50
Vans low tops (item # 594939) $60.00
Vans socks (item # 598993) $15.00
And just by adding all this, that how you would find the subtotal. Hope this helps! ;)
Bank A = 1000 x (1 + (0.04*6)) = $1,240
Bank B = 1000 x (1+0.03)^6 = $1,194.05
Bank A would be worth more