Daniel's math test scores are 75, 82, 47, 93, 87, 72, 84, 88. If his teacher
drops the lowest score, how much will his mean increase?

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Hurry can a triangle can be constructed with angles measuring 115°,55°, and 20°? yes or no