Charmaine, Keisha, and Michael each own a plane and take their own flights. They each spend hours flying on Monday, hours flying on Tuesday, and hours flying on Wednesday. Their average speeds (in ) for each day are given in the following table. Average speed Charmaine Keisha Michael Monday Tuesday Wednesday The table can be represented as the following matrix. (a) Find a matrix whose entries are the times (in hours) spent flying each day. Make sure the product is defined and its entries are the distances (in kilometers) each pilot flew overall. (b) Calculate the product . (c) How far (in kilometers) did Keisha fly overall?