The answer to the question
20
Formula for perimeter: length x 2 + width x 2
70x2 is 140 then subtract it from 180 and you’ll get 40, then you half it and get 20
Answer: 20,000
Step-by-step explanation:
every 30 years 10,000 adds to the population
30 years=10,000 people
60 years=20,000 people
Answer:
C (if the sign after the digit 1,2,3,4 is not minus !!!)
Step-by-step explanation:

Yes it is a function. As x increases by one, y constantly increases by 4. The function would me y=4x+4