A lorry travels 40 miles in 45 mins then it travels 110km in 2.5hours 5miles=8km. Calculate the lorry’s average speed in km/h

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

Find the slope of the line that passes through the points (-3, -1) and (0, 3). 3/4 0 4/3

Jack has to solve the problem 281-266.how would you tell him to solve the problem ? tell which strategy you would use ,and solve the problem.