P=33+6.71
= 39.71
add 33+ 6.71
5/8 of them are not white, so 5/8 times 56, you get 35.
The slope intercept form using the two points would be : y= 2x-13
Check picture below, solve for "x" and "y"
unless you've already covered the 30-60-90 triangle, then check your book on them, to see the ratios, using the 30-60-90 ratios is simpler