Juan buys 4 shirts on sale for $15 each. he also buys 6 pairs of socks, each pair of socks being the same price. if the total cost for the clothes is $78, how much did one pair of socks cost? . a.. $3. b.. $8. c.. $3.70. d.. $3.50

The total cost for the clothes is the sum of the total cost for the shirts and that of the socks. Let x be the price of each sock and that the equation that would best represent the given above is,
                                          4(15) + 6x = 78
The value of x is 3. Therefore, each sock costs $3.

                                

The unit price is 0.99