Answer:
(A) The number of bacteria is originally 300 and increases by 30% every hour
Step-by-step explanation:
I am assuming the function should actually read:

(i.e., there should be a "t" in the exponent. if this is not the case please disregard my answer).
According to the above exponential function, the initial amount 300 grows as (1+0.3)*300=300+0.3*300. In other words it increases by 30% every hour (t).
Your answer choice (A) is likely a candidate, except I am missing "every hour" at the end (again, am assuming this was omitted by mistake)
Answer:
-7
Step-by-step explanation:
−10−(−3)
=−10−(−3)
=−10+3
=−7
Answer:
16.5
Step-by-step explanation:
this is very true because it is
The answer is B. the open circle means “greater than” or “less than” and the closed circle means “greater than or equal to” or “less than or equal to”.
-1/2 x < -12
Multiply both sides by -1 :
1/2x > 12
x > 12 × 2
x > 24