2. 4 pts] A donut factory produces donuts, and below is a graph of the rate r(t) at which donuts are produced per minute until an emergency shutdown at around 230 minutes. The numbers at the bottom of each of the different shaded strips gives the area under the curve of that part of the graph. a) Approximately how fast were donuts being produced at 50 minutes and 200 minutes? b) How many donuts were produced between 50 and 200 minutes? r(t 200 å ´1) 100 8002 2140 2855 602s 100 200 300