If you add his expenses, $2.10 + $4.45 you’ll get that Luke spent $6.55 today.
Then subtract his expenses by how much he made for mowing the lawn, $13.50 - $6.55 =
Your answer is A. $6.95
There are 4 terms in the expression ^_^
He should use an average of 20%, and I'm assuming, since not enough info is given, that 1 gallon of milk has the given stats. The average of 20% would mean that he needs to have a 2/3 ratio of 18 to 24, because 18:24 = 6:8, which equals 2:3, so, therefore, he needs to have 42/5 = 8.4, then 8.4*2, 9.4*3 = 16.8 and 28.2, respectively, and if you add those, you get 42.
Hope this helps and have a nice day:)
A = 115 + 1/2 (p + s)
you subtract 115 from both sides, and you get
A - 115 = 1/2 (p + s)
now you multiply by 2 on both sides, and you get
(A - 115) * 2 = p + s
NOTE: I DISTRIBUTED 2 IN THE FOLLOWING EQUATIONnow you subtract p on both sides to get s by itself and you get
2A - 230 - p = s
so the final answer is .......