Suppose a normal distribution has a mean of 120 and a standard deviation of 10. What is P(x > 100)?
A. 0.475
B. 0.84
C. 0.975
D. 0.16

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0

Find the maximum value of p= 4x + 5y subject to the following constraints :

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120