The produce manager at a market orders 20 lb of tomatoes, 10 lb of zucchini, and 50 lb of onions from a local farmer one week. a) Write a 1 x3 matrix A that represents the amount of each item ordered. b) The following Week. the produce manager increases his order by c) Find A+ B and tell what the entries represent. 1" 10%. Find a matrix B that represents this order. M7