If a farmer can trade four chickens for a pig, three pigs for two sheep, and five sheep for two cows, what is the minimum number of cows he needs to trade for $20$ chickens?

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.