15/2 = 7.5
7.5 x 2 1/2 = 18 3/4 cups
Hope this helps!
Answer:
150
Step-by-step explanation:
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You split it into a triangle and a rectangle. The rectangle’s area is 12x16=192. For the triangle, you have to find the length of the b side. You already know a and c so 12^2 + b^2=15.5^2. Solve it algebraically to get b=9. So the triangle has an area of (12x9)/2=54. So the total area is 192+54=246cm^2.
A. 80 students
B. 12 students