a)
32 oz jug cost costs $9
Let x be the cost of 44 oz of detergent. Then we have:
44/32 = x/9
x = 9*(44/32)
x = $12.38
b)
Since 44/32 = 1.375, the percent increase in the amount of detergent is given by (1.375 - 1) = 37.5%
c)
Since 32/44 = 0.7272..., the percent decrease in the amount of detergent is given by (1 - 0.7272) = 27.27%
d)
In this case, the new price of a 32 oz jug of Sudz is given by (32/44)*9 = $6.55