(a) The answer is 86%.
(b) There were 260 rulers.
All three boys together had 390 dollars.
The area of the curve is approximately 25/3.
There were 78 marbles originally in the bag.
Answer: The baker should buy a minimum of 14 cups of flour and a maximum of 34 cups of flour.
The correct answer is
C.
90 ≥ 2x + 44 ≤ 95
