Answer:
4'5"
Explanation:
There are 12" in 1foot Sandy's little sister is 35 inches tall, didivide that by 12 and you get that the sister is 2'9" Sandy'sher older sister is 39 inches taller than her little sister so 39 divided by 12 is 3.25 (which rounding up to the nearest 10th is 3'3") so 2'9" + 3'3" = 6'0" this is Sandy's older sister's height. Subtract 2'3" from that and you get Sandy's height to be 4'5"