Ans:
1– 15.2 m³
2– (4m – 6) years
3– 114 packets
4– 48 watches
5– 30 cards
6– $462.50
7– $54
8– $108
9– a -> 72 cm , b -> 37 squares , c -> 397 squares , d -> 308 cm²
10– $12p
11– $1372
12– 31 : 9
13– $1125
14– a -> 1440 cards , b -> 69%
15– 595 parcels
16– $970
17– 24 cookies
18– a-> 1/10 , b -> 8 rulers
