Answer:
72 words per minute
Step-by-step explanation:

42 × y = 1 × 3024
42y = 3024
42y ÷ 42 = 3024 ÷ 42
y = 72
Standard form is like
ax + by = c
4y - 3 = -5x
5x + 4y - 3 = 0
5x + 4y = 3 <----- answer
y+1=3(x-4)
Multiply the bracket by 3
y+1=3x-12
Follow y=mx+b Move +1 to the other side. Sign changes from +1 to -1
y+1-1=3x-12-1
y=3x-13
Slope=m = 3
b= y-intercept=-13
Answer: Slope=m=3- D.