A sample of 900 members has a mean of 3.4cm and standard deviation of 2.61cm. Is the sample from a large population of mean 3.25cm and standard deviation 2.26cm?​

The class wants to raise a total of $750.if they receive a profit of $1.25 from each candybar sold, how many bars must they sell to reachtheir goal

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)