Write an equation of the line that has a slope of 6 and contains the point (1,1) in point-slope form.

X+ y = 5 ; x - y =3 solve using linear combination

Geometry in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

Aball is dropped from a height of 10m above the ground. it bounce to 90% of its previous height on each bounce. what is the approximate height that the ball bounce to the fourth bounce?