Anne wants to buy the smallest tree she can find for her apartment. which set orders tree heights from tallest to shortest?
a. {4.2 ft, 1 1/4 yd, 3 ft, 34 in.}
b. {34 in., 4.2 ft, 3 ft,1 1/4 yd}
c. {34 in., 3 ft,1 1/4 yd, 4.2 ft}
d. { 1 1/4 yd, 3 ft, 4.2 ft, 34 in.}

To work this out, we have to change all the measurements to the same unit. Let's use inches (in.) 1 ft. = 12 in., 1 yd. = 36 in. Then we times the number of inches by the equated number of ft or yd. These are the sums use within all four sequences: 4.2 X 12 = 50.4 in, 1.25 X 36 = 45 in, 3 X 12 = 36 in, 34 in. Now we have to order them in size order with the original units and see which option (a, b, c, or d) matches up correctly: 4.2 ft, 1 1/4 yd, 3 ft, 34 in. We can see that the correct answer is a. Hope this helps :)