Is (3,11) a solution to the equation y= 5x-4

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

Brent needs to paint a logo made using two right triangles. the dimensions of the logo are shown below. what is the difference between the area of the large triangle and the area of the small triangle? (1 point) select one: a. 4.5 cm2 b. 8.5 cm2 c. 16.5 cm2 d. 33.0 cm2

Can someone me out here and the tell me the greatest common factor