Answer:
y = -3x+7
Step-by-step explanation:
Point (0,7)
Point (1,4)
slope = y2-y1/x2-x1
slope = 4-7/1-0
slope = -3/1
slope = -3
Answer:
d) Point D
Step-by-step explanation:

The answer is 12.6 %.
60% = 60 / 100 = 0.6
60% of 21
= 60% * 21
= 0.6 * 21
= 12.6