Help please.........................

Total Cost/Price including ST: $37.80

all together: $45.36

$44.80

Step-by-step explanation:

35* 0.08= $2.80

35* 0.2 = $7

35+7+2.80= 44.80

-2 =y

Step-by-step explanation:

We can find the slope of the first line

 m = (y2-y1)/(x2-x1)

     = (2-8)/(-1-6)

     = -6/-7

      =6/7

Perpendicular lines have negative reciprocal slopes, so flip the slope and negate it

The perpendicular slope is -7/6

 -7/6 = (y2-y1)/(x2-x1)

Put in the points

 -7/6 = (y-5)/(5--1)

-7/6 = (y-5)/(5+1)

-7/6 = (y-5)/6

The numerators must be equal since the denominators are equal

-7 = y-5

Add 5 to each side

-7+5 = y-5+5

-2 =y