Someone pls help me . I also need to show work just in case my teacher ask me to send her a photo of my notebook .

 (i) 3

(ii) 10

(iii) 1080

Step-by-step explanation:

(i) Coefficient is the number written before any variable.

Coefficient of x in is 3.

(ii) Constant is a numerical term written without any variable.

Constant in is 10.

(iii) Let x be the number of miles Katie's family drive.

Since they charge $30 combined with $0.25 per mile drive.

So, Total charge = 0.25 x +30 ( in dollars)

If they charged $300, then

Subtract 30 from both sides, we get

Divide both sides by 0.25, we get

Hence, Katie drove 1080 miles.

b. astronomers

b

step-by-step explanation: