<u>Answer:</u>
(x, y) = (1, 1)
<u>Step-by-step explanation:</u>
--- (1)
--- (2)
Multiplying (2) by -2 to get:
--- (3)
Adding (1) and (3) to get:


------------------------------------

x = 1
Finding y:



y = 1
Therefore, (x, y) = (1, 1).
Answer:

Step-by-step explanation:
4 3/5


= 23/5
We have c(t) = 350t and b(c) = 12c
The composite function that expresses the calories as function of time is given by
b[c(t)] = 12[350t]
b[c(t)] = 420t
Correct answer: B