The bill for the repair of your refrigerator was $146. The cost for parts was $74. The cost for the service call and the first half hour of service was $50. The additional cost for labor was $22 per half hour. How many hours did the repair work take?

146 - 74= 72

72 - 50 = 22

from the $50 is 30 mins of work

add on another 30 mins for the $22

it took 1 hr

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

you bought 31 v bucks

step-by-step explanation:

25+6=31