You just have to subtract four from each side to get x alone.
The answer is x = -18
First find the probability of getting 2 and 3 or 1 and 4 and toss the dice. multiply this by 288 ;)
5/8 that's how ratio of students that will buy lunch. so in order to find number students who will buy the lunch out of 720, just multiply 720 with 5/8 ie, 720x5/8 ie 450.
450 is answer
C, 62
Line segment SQ=180, because it is a straight line
90+28=118
180-118=62
hope this helps:)
(85/86)*688 cg = 680 cg . . . inert ingredient
.. 688 cg -680 cg = 8 cg . . . .active ingredient
