Section j in an arena has 20 rows. each row has 15 seats. all tickets cost 18 dollars each. if all of them are sold, how much money will the arena collect for section j.

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

If the segment op is dilated by a scale factor r=2, what is the length of segment op? a)10cm b)16cm c)6cm d)4cm

The coverage of a base station of a telecommunication company forms a disk with a radius of (kilometers). let be the distance of a cellphone from a base station. assume that the location of cellphones in use are randomly uniformly distributed within the disk. calculate the mean and variance for the random variable.