AB and AC ................................
You have to turn the number or ratio and simplified the number and put it in to the chart like the norm number
.
B is the correct answer
C and D would be incorrect as 7 and 15 multiplies to 105 not 115
A is incorrect as -5 and -15 make a positive 75 not a negative 75
The most expensive would be one foot wide and forty eight feet long (or vice versa) and the least expensive would be eight foot wide and six foot long (or vice versa).
I can help you, thanks for the points too.