the ratio of pens to pencils is 5 to 6 . there are 6 more pencils than pens . how many pencils are there ?
"let the number of pens be 5 x and the number of pencils be 6 x . 6 x - 5 x = 6 x = 6 the number of pencils is 36 . the answer is b ."
add(multiply(6, 5), 6)