Please help really quick I don't have much time.

4. -45 (the first answer)

5. -7/2 (the second answer)

Step-by-step explanation:

4. move 8 to the other side

1/3x = -15

divide 1/3 by -15

4 = -45

5. divide 3 by -6/7

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)