Please help anybody I need to fast please

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c =