I really need help on this question, a explanation also with details would be very appreciated. Please don't respond to my question if your not gonna say anything useful to me.

Answer:
15:16 THE TEXT OF THE QUESTION ASKS IN TERMS OF INCHES
Step-by-step explanation:
1 ft = 12 in
4ft = 4*12 = 48 in
ratio = 45/48 = 0.9375
if you check the answers the only one that has a ratio of 0.9375 is 3.75:4
Answer:
15:16
Step-by-step explanation:
First you need to convert feet in inches, because you are asked about the ratio in terms of inches
Using the formula given (1 foot equals 12 inches) we can find that 4 feet are 48 inches
1 ft -------> 12 in
4 ft------->x in
x=4*12
x=48 inches
Now when you now that 4 feet are 48 inches you can find the ration in terms of inches
45 inch to 48 feet
45:48
and when you divide both numbers by 3 you get:
15:16