1. 2
2. 3
3. 4
4. 5
3
1. (1/5)(15a – 7b)
2. (1/7)(15b – 3a)
3. (1/5)(27a – 3b)
4. (1/7)(12b - 27a)
(1/7)(15b – 3a)
1. 26 minutes
2. 24 minutes
3. 27 minutes
4. 28 minutes
24 minutes
1. 1
2. 2
3. 3
4. more than three
1
1. 750
2. 811
3. 810
4. 749
749
1. 4
2. 9
3. 15
4. 24
15
1. 24 cm
2. 36 cm
3. 32 cm
4. Cannot be determined
36 cm
1. 7
2. 13
3. 49
4. cannot be determined
49
1. 440 ≤ S ≤ 3025
2. 550 ≤ S ≤ 2055
3. 660 ≤ S ≤ 3025
4. 615 ≤ S ≤ 2055
615 ≤ S ≤ 2055
1. 6 m
2. 10 m
3. 10Ö3 m
4. 6Ö3 m
10 m