Question

at their family reunion, the becker family recorded everyones age. how many people are there in all? people

Explanation:

Step1: List counts per age group

1-5:30, 6-10:10, 11-15:0, 16-20:70, 21-25:50, 26-30:30, 31-35:80, 36-40:10, 41-45:30

Step2: Sum all counts

$30+10+0+70+50+30+80+10+30=390$

Answer:

390