Answer:
Step-by-step explanation:
21 feet below is written as -21
9 feet up is written as +9
So we have -21 + 9 = -12 or 12 feet below sea level
Answer:
n^23
Step-by-step explanation:
n^3 · n^20 = n^23
99 would be to more than 89 because 89+10= 99<span />
30.6 because 10.2 times 30 is 30.6
It is adding one little percentage of increase here. or, 1.1 each time....hope that this helps.
