Answer:
2.5
Step-by-step explanation:
divide to find unit rate
15/6=2.5
Between 2000 and 2030 three decades will have gone by, which means the population will triple three times.

Therefore, the population of Bridgetown will be 675,000 people in 2030.
Answer:
n ≥ 29
She needs to do more than 29 pushups on the sixth day.
Step-by-step explanation:
First, we need to use the formula for finding the average. We currently have numbers for the first 5 days.
(22+26+21+25+27+n)/6 = 25
Multiply both sides by 6.
25*6 = 150
150-27-25-21-26-22=x
x=29
Since it is an inequality, Sarah needs to do more than 29 pushups on the sixth day.