If and are parallel, which angles are congruent to Ð 3 ? A. Ð1, Ð5, and Ð7 B. Ð2, Ð4, and Ð5 C. Ð6 and Ð7 D. Ð1, Ð4, and Ð5

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

How many glue sticks are in a basket containing 96 scissors, if the ratio of glue sticks to scissors is 19 to 57.

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?