The cost of a parking permit consists of a one-time administration fee plus a monthly fee. a permit purchased for 12 months costs $660. a permit purchased for 15 months costs $810. what is the administration fee? $50 $54 $55 $60

The administration fee is $60. Option D.

Step-by-step explanation:

A permit purchased for 12 months costs = $660

A permit purchased for 15 months costs = $810

The difference in 3 months costs = 810 - 660

                                                       = $150

Cost of one month permit = 150 ÷ 3 = $50

Monthly fees of the parking permit = $50

Yearly fees of the parking permit  = $50 × 12 = $600

One time administration fee =  660 - 600 = $60

The administration fee is $60. Option D.

76%

step-by-step explanation:

24% are dogs and the remaining is 76% because 100-24=76

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c