Vinegar is the x or horizontal oil is the y or vertical

the point represent the amount of vinegar and oil so for 1 tbsp vinegar you need 1.5tbsp oil
The exact value for cos(pi/16) would be :
cos (pi/16) = +/- √1+cosa/2
cos (pi/4) = sqrt2/2
Hope this helps
Your answer is A
hope this helped
to get this answer you multiply 475 by 1.75% and then you get 8.31
Isnt it 4x-2 ?? i mean it does say "find" AB...