55+(x+25)=180
55+x+25=180
25+55+x=180
80+x=180
x=180-80
x=100
Alright, lets get started.
Suppose women had to pay x $ at regular price.
As we know, the sale is 1/4 off.
It means she saves x * 1/4 = x/4
So, women need to pay = regular price - what she saves
women need to pay = x - x/4 = 3 x / 4 that is equal to 42 (given in question)
3x / 4 = 42
Multiplying 4 in both sides.
3x / 4 * 4 = 42 * 4
3 x = 168
Dividing 3 in both sides
3 x / 3 = 168/ 3
x = 56
she have had to pay 56 $ at the regular price : Answer
Hope it will help :)
For this case we have,
3/4 of a bushel of apples -----------------------> $ 9
1 bushel of apples -------------------------------> x
From here the value of x is cleared, resulting in:

2/3 of a bushel of apples -----------------------> $ 9
1 bushel of apples -------------------------------> x
From here the value of x is cleared, resulting in:

Therefore it is convenient to buy apples in store 1 because it is cheaper.
Answer:
It is convenient to buy apples in store 1 because it is cheaper. A division must be made for each case because you want to find the unit cost of a product having the total cost and the amount in fraction.
Top one is “equal to”
Middle one is “longer than”
Lowest one is “will”