Does this represent a function? Yes or no and explain why. (Please fast! im being timed(

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

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?

You buy 4 items that cost 2.69 14.45 8.05 13.95 what is the estimated total round to the nearest dollar