Who ever can answer questions 3,4, and 6 will get 30 pts

See below.

Step-by-step explanation:

6.)

y - 2 = 3(x - 6)

y - 2 = 3x - 18

y = 3x - 16

4.)

y - (-2) = 3(x - 5)

y + 2 = 3x - 15

y = 3x - 17

3.)

y - 7 = 2(x - 4)

y - 7 = 2x - 8

y = 2x - 1

answer: 4/6 =5/7.5

step-by-step explanation: it is based on scale and the scale between the two is 1.25. the answer is correct but i dont know if i explained it right