Arectangle has a perimeter of 48 feet and a length of 14 ft which equation can you solve to find the width

Abcd is a parallelogram find the valuse of x

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?