the amount of sales tax varies directly with the cost of the purchase if the sales tax is 2.40 on a purchase of 40.00 what would be the sales tax on a purchase of 60.50

your answer is a

step-by-step explanation:

4*4*4*4=256

the linear relationship that represents a variation in direct proportion is the linear function that varies according to the numbers of its domain, for example the cost of producing x number of items can be represented in direct proportion by f (x) = mx + b, where m is the constant of proportionality, x the number of articles produced and b the fixed cost