Afurnace technician charges $20 per hour and a one-time service charge of $30. which equation represents the total charge, y, for working x hours?
a. y=20(x+30)
b. y=20x+30
c. y=30x+20
d. y=20(x−30)

12/11c

or

12

c

11

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !

thus, the first answer choice, y = sec x, is the correct one

idk

step-by-step explanation: