Answer:
-486, 1458, -4374, 13,122
Step-by-step explanation:
each number is multiplied by -3
9 1/5=46/5 ; 7 1/2=15/2
common denominator is 10
46/5-15/2=( 92-75)/10= 17/10= 1 7/10 feet= 1.7 feet