The wholesale cost of a fleece shirt that sell for $20.00 is $12.50. what percent profit is being made

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

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

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin. how many doctors use brand x aspirin