Alan is 78 years older than Vivian. In 13 years Alan will be 3 times Vivian age. How old is each now?

Ifound this on google “that means that the graph of a function with direct variation has these features: it is a straight line: because the slope is the ratio y/x = k. it passes through the origin (0,0): because y = kx = k (0) = 0.” i hope this you for what your looking for

How much is 32 out of 40 written as a percentage? convert fraction (ratio) 32 / 40 answer:   80%

Answer is negative 2

They have to let you pass middle school