Hello please help i’ll give brainliest

1. 1

2. 6

3. 3 or 4

Step-by-step explanation:

1. 8 families have 3 children

2. 25 families are represented in the dot plot.

3. 20 families have less than 4 children

false.

step-by-step explanation:

false.

cavalieri's principle makes that statement about the volumes, not about the areas.

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40