Evaluate when y=4 and 1 = 2 xy + 2x2

It takes jonas 7 1/4 minutes to run the mile. it takes mario 8 5/12 to run the mile. how much faster is jonas than mario? 5/6 minute 1 1/3 minutes 1 1/6 minutes 1 1/2 minutesi will give points and brainlest

Give all possible names for the line shown. calculation tip: lines can be written with either point first.

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.