The first two angles in a triangle are 75 degrees and 60 degrees. What does the third angle have to be? A. 35 degrees
B. 45 degrees
C. 55 degrees
D. 100 degrees

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?

The surface area of the triangular prism is .