So, personally I would take 252 and divide it by 4. this will give you 63 which is 1/4 of the cookies. Then add that 63 three times to get a total of 189 cookies which would be your 3/4 sold. so since there is only 63 cookies left then you would go into your final problem. 3/9 is equal to 1/3, so all you would do is divide 63 by 3 and get a total of 21 cookies given to the pta.
the lines are perpendicular because they're crossing each other
(86.8 - 3n)/4
You can get this by combining the two. Make sure to give common denominators.
Answer:
-2
Step-by-step explanation:
Put the given value in the equation and solve for x.
f(x) = 12
f(x) = 2(x +8)
12 = 2(x +8) . . . . . use 12 for f(x)
6 = x +8 . . . . . . . . divide by 2
-2 = x . . . . . . . . . . subtract 8
