6 - A because I multiplied 7 and 3, then added the 3 on top and flipped the fraction (reciprocal- flip the fraction)
7 - B - divided 103 1/8 by 12 1/2
8 - D I put 1/8 into a decimal by dividing 1 by 8 and did the same for the others until one decimal was higher than 1/8 (its absolute value so the - on the 1/8 disappears)