The answer that you are looking for 1/5, you basically 2/3 in decimal form is 0.6. Then you divide by 3 to get 0.2. Then the way I did this was by first doing 2 over 10 (2/10), then reduced it to 1/5 (1 over 5).
*This was the way I did it, you don't have to do it this way. Find a way that is easiest for you to answer problems like this in the future.
The correct
answer is 156
If u meant $1.10 donated then it would be $190.9
But if u donated 110 then it would be $82
(84)5 = 420
(73)9 = 657
420 + 657 = 1077
Let, Price of a shirt = x
Price of a Jeans = y
Equations would be: 4x + 3y = 150
x + 2y = 70
x = 70-2y
Substitute it into first equation,
4(70-2y) + 3y = 150
280 - 8y + 3y = 150
-5y = -130
y = 130/5
y = 26
Substitute it into 2nd equation,
x + 2(26) = 70
x = 70-52
x = 18
So, Cost of a Shirt = $18 & Cost of a Jeans = $26
Hope this helps!