Answer:
a=-15
Step-by-step explanation:
Answer:
C. is correct
Step-by-step explanation:
Mono means one and 2nd degree is 2 as a exponent.
Answer:
A. 49 + 16 (t - 1)
Step-by-step explanation:
Plug in t = 1 to test for the first hour:

Test as many values as you like, but testing t = 5:

You can see that plugging in just a few values confirms the answer.
Answer:
33/5
Step-by-step explanation:
6 3/5 = 33/5
6 x 5 = 30
30 + 3 = 33
33/5.