To make sky blue Sam uses two drops of blue paint for every eight drops of white paint. He wants to make a large amount of sky blue paint. If he uses sixteen drops of blue, how many drops of white will he
need?

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)