construct the probability distribution, and find the mean, variance, and the standard deviation for the number of computers per household in a small town

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

Multiply. write your answer in simplest form. 3/8 x 5/7

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer