Answer:
f(12) = - 20
Step-by-step explanation:
To evaluate f(12), substitute x = 12 into f(x), that is
f(12) = - 2(12) + 4 = - 24 + 4 = - 20
a. is 5
c. is 3
e. is 6
b. is 1
d. is 4
f. is 2
Sorry its hard to read and see
Y=0.35x+18.99
Y = total cost
X = number of letters
8 × ( 5 + 7 ) =
= 8×5 + 8×7
= 40 + 56
= 96
