Answer:
78
Step-by-step explanation:
18+19+20+21=78
Explanation - Given that Rex's weight changed from 80 pounds to 92 pounds. Hence, percentage increase in Rex's weight in a year is 15 %.
Answer:
There should be 120 fishes approximately in the lake
Answer:
22
Step-by-step explanation:
In this sequence, the next number is found by adding 4.