ANSWER:
Domain: {3, 7, 4, a}
Range: {a, b, 4, 0}
2x + 4 = 3x - 10
-2x and +10 to both sides
14 = x
the answer is x = 14
-3f is the temperature at 9am because -12f is colder than -3f
Trinomials simply have 3 terms. The answer is C
Valid because 3 x 3 is 9 :))
