Answer:
a) 6 17/20
b) 10 31/60
Step-by-step explanation:
a) 9 2/20 - 2 1/4 = 137/20 = 6 17/20
b) 6 17/20 + 3 2/3 = 631/60 = 10 31/60
250
19 houses
90*(2/5)=36
90-36=54
54*(2/3)=37
54-37=19
0 (additive inverse) yw
200,000,000
8,000,000
478
all added together
