How much of an alloy 30% copper must be added to 25 pounds of a second alloy which is 20% copper to create a 27% alloy?

What are the related frequencies to the nearest hundredth of the columns of the two way table? group 1: a-102 b-34group 2: a-18 b-14edited: i don’t have all day to be waiting for an answer. i figured it out.

Ineed me i stuck and i don’t want to get it wrong

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