The answer to this question is 29
X/7 = 6/4.2
4.2x = 42
x= 10
Answer D: The graph increases as x goes to -infinity and decreases as x goes to infinity
ANSWER

EXPLANATION
The given function is:

Factor -3 for the first 2 terms.

We add and subtract the square of the coefficient of x.

Factor the perfect square trinomial.

The vertex form is:

For number 2. The pilot flew 4 circuits and in total by the 5th day he flew 14 right?