Answer:
15
Step-by-step explanation:
-3 times -5 equals 15 because two negatives multiplied by each other equals a positive.
(7x) + 3 = 8
subtract both sides by 3.
7x = 5
divide both sides by 7 to isolate the variable, x.
x = 5/7
Answer:
14708
Step-by-step explanation:
The growth factor is 100% + 2.5% = 102.5% = 1.025
Population after 5 years
= 13000 × 
≈ 14708 ( to the nearest whole number )
For the range:
5, infinity