Construct a quadrilateral PQRS such that PQ=RS=7.3cm, angle Q=60°,QR=5cm and angle R=135°.

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)