Please help grades due tomorrow. Thanks to anyone

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Aflower has 26 chromosomes. to create a new flower, how many would a sperm cell have what is called?

The architect's side view drawing of a saltbox-style house shows a post that supports the roof ridge. the support post is 8 ft tall. the distance from the front of the house to the support post is less than the distance from the post to the back of the house. how far from the front of the house is the support post positioned?