Farmer Bob's son built a track to walk his pet pig. The track goes around the pig pen. The pig pen is 15 feet long and 21 feet wide. If the pig walks all the way around the track, how many feet did he walk?

72 Feet

Step-by-step explanation:

it is a four sided figure so 15*2 + 21*2 you will get 30 + 42 so the answer is 72

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.