Farmer smith has smith 160 ft of fencing that she is using to make a rectangular enclosure for her chickens she will use the side of an existing chicken coop as one side of the enclosure and use the fencing forbthe other three sides whixh function gives the area a in swuare feet as a function of the length of one of the sides perpendicular to the existing coop a. a(x)=x(80-2x)
b. a(x)=x(80-x)
c. a(x)=x(160-2x)
d. a(x)=x(169-x)

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?