Need help in pre algebra pls

Step-by-step explanation:

4) c 1/4  the y value increases by 1 for every 4 increase in x, m = Δy/Δx

5) b -1    the y value where x = 0 is -1

6) d 4     the x value where y = 0 is 4

7) b y = (1/4)x - 1   plugging our found values into y = mx + b

8) b 2   2 = (1/4)(12) - 1

can someone answer this question plz

step-by-step explanation:

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.