You can buy 3 sandwiches for $4.95 or 4 sandwiches for $6.72. find the unit rate for each which is the better buy?

Which functions are even? check all of the boxes that apply. f(x) = x4 – x? f(x) = x2 – 3x + 2 f(x) = (x - 2) f(x) = x done

Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?

Determine domain and range, largest open interval, and intervals which function is continuous.