Answer:
Step-by-step explanation:
D = Donuts
B = Brust cut
P = Profit
B - 12D = $3
12D = $12 a donut, used $3 since it didnt say more than 3.
Plug it in
B - 12(10) = $3
B - 120 = 3
+120 +120
B= $123
If Brust had 1/4 of the profit, do 4B to find profit
4B = P
4(123) = P
P = $492
Algebros made $492 selling fidget spinners.