No. If it has three sides, then it's a triangle, and not a trapezoid.
Answer: 1/12 of a cup
To get this answer, you multiply 1/4 by 1/3
Multiply straight across
(1/4)*(1/3) = (1*1)/(4*3) = 1/12
The probability is 4:20
It is correct because there are 20 students and there could be 4 guesses
The relationship between the 7's is not different in any way because the sevens are all in the same place. The sevens are in the hundreds and thousands place.
