Ratios equivalent to 5:3

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.

During a wright loss challenge your friend goes from 125 pounds to 100 pounds.what was the percent weight loss

If f(x)=3 over x+2 - square root x-3 then f(7)=