Which statement describes a situation that can be represented by an exponential function? A)The value of a stock decreases by 5% every month.
B)customer pays a restaurant bill of $18 and leaves a 20% tip.
C)A canoe rental company charges an initial fee of $12 and an hourly rate of $8.
D)The area of a square increases by 400% when the length of each side of the square increases fro
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Math it's appreciated. (picture provided)

Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?