280

21 m

140 sq. m

280 sq. m

280 cu. m

n = 67

n = 198

n = 603

n = 70

12 treat bags

3 blue

4 pink

5 yellow

18 treat bags

4 blue

3 pink

6 yellow

6 treat bags

4 blue

3 pink

6 yellow

6 treat bags

6 blue

4 pink

3 yellow

3n + 5

5n + 3

5 + 3

5 + 3n

$$\frac{6}{9}$$

$$\frac{8}{18}$$

$$\frac{4}{9}$$

$$\frac{2}{3}$$

36

56

75

92

45%

46%

47%

48%

7n + 8

10 + 15

10n + 15

7n + 15

80

60

30

10

15

4

-15

6