1. 29 frogs

2. Shape (c)

3. 44 penguins, 28 huskies

4. Treble = 8, double = 20, single = 13

5. 40

6. Apples 30¢    Bananas 50¢  Cantaloupes $1.20

7 A. The green ball will stop dead. The red ball will fly off to the right at high speed.

8. Cube 1: one rubber band  Cube 2: two rubber bands

9. Four times

10. 21