What’s the least common multiple of x^2-2x-15 and x^2+2x-3?

Two vertices of a polygon are (7, −18) and (7, 18) . what is the length of this side of the polygon? enter your answer in the box. units

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document