Answer:
not sure if it's ryt but I think it's A
The answer should be 1546.3 after its worked out.
Substract by 12 from 42, and keep going down until you hit -54, which is 8 hours!
Answer:
D
-29
Step-by-step explanation:
Problem 1
In the first hour, the number of bacteria is 22
In the second hour,the number of bacteria is 44
It looks like the formula is some multiple of 22
That means you should pick D
Problem 2
n = 12
a = 15
d = - 4
an= 15 + (n - 1)*d
a12 = 15 + 11*(-4)
a12 = 15 - 44
a12 = - 29
