Answer:
A
Step-by-step explanation:
To evaluate f(- 3) substitute x = - 3 into f(x), that is
f(- 3) = 4(- 3) + 7 = - 12 + 7 = - 5 → A
Answer:
1.-6
Step-by-step explanation:
I don't know how to do the second one but
BD = DC
x+8 = 3x+2
2x=-4
x=-2
-6+12
-6
a. 60 miles/1 hour because 420/7
b. 12 customers/1 day because 360/30
c. 2.5 meters/1 sec because 40/16
d. $1.59/1 lb because 7.96/5