Which expression is equivalent to 3 7/8 - 6 1/4? A: -6 1/4 + (-3 7/8)
B: 3 7/8 + (-6 1/4)
C: 3 7/8 + (6 1/4)
D: 6 1/4 - (3 7/8)

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

In a column proof the right column states your reasons