What’s the area of the shaded regions in terms of pi?

Two parallel lines are crossed by a transversal.what is value of x

Select the lengths in centimeters that would form a right triangle

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?