Russell wants to buy 3 tires and a belt in my spend no more than 80 dollars. The belt cost 28 dollars and 50 cents if the 3 ties are the same price than how much he pay for each tie​

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

The answer might be a