10. Emily and Andy each go to a hardware store to buy wire. The table shows the relationship between the cost and the length of wire.
a. Emily needs 24 feet of wire. How much will she spend on wire?
b. Andy needs 13 yards of wire. How much will he spend on wire?

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)