Please help if possible..

The coordinates of the vertices of the triangle shown are P(2, 13), Q(17, 1) and R(2, 1). What is the length of segment PQ in units?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Fa bus driver leaves her first stop by 7: 00 a.m., her route will take less than 37 minutes. if she leaves after 7: 00 a.m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?