One of your classmates wants to start a car detailing business. He has decided to charge 30 dollars a car, but loses approximately fifteen dollars per hour in maintenance fees (this includes things such as water, electricity, location rental, supplies, and the repair and replacement of items). If the student washes twelve cars in eight hours, how much profit can they expect to make ?

$240

The reason why is because the friend charges $30 a car and has fees of $15/hour.  So you multiply the $30 by the amount of cars, which is 12.  You get $360.  Then, you multiply the fees ($15) by the amount of hours (8) to get $120.  You take the money you earn, which is $360, and subtract it by the total fees, which is $120.  $360-$120=$240.

Hope this helps! :D

The First answer is

VWXZ+VWXY+WYZ+VXY+VWZ+XYZ

The second possible answer is:

VWXZ+VWYZ+WYZ+VXY+VWZ+XYZ

Step-by-step explanation:

First we draw the k-maps for the function . There are two k-maps, one with V as zero while the other is V as 1. Then we combine the entries in power of 2. Remember that the function is given in maxterms form.Max-terms are those whose value is 0. So all the values other than max-values are either 1 or don't care. So we will keep these terms 0 and other as 1. The k-maps are attached in the files below. The essential prime implicants are those which are repeated in all the possible solutions.In this case Essential prime implicants are :

VWXZ+WYZ+VXY+VWZ+XYZ

http://www.32x8.com/sop5A-B-C-D-Em_4-5-7-8-10-14-15-16-17-18-21-22-23-31d_1-2-12-13option-0899788976571894282724?fbclid=IwAR2BaNgaMe0FXK1AEcwzLb1tkw5Oo-DIn-w0QNxE6ck9nYOSS1GnGtWC4SU