it's rational, it doesn't go on and on or has long repeating patterns.
answer: d) 8 students
since $200 is already covered, you would subtract 200 from the total cost to find out how much you need left.
next, you do 400/50 because each student would cover $50.
therefore, your answer is 8 students.
answer: roast beef- 32 turkey-80 vegetarian-48
this is the answer because if you divide 160 divide by 5 that gives you 32 for the roast beef. for the turkey you divide 160 and 3 that gives you 80. for the vegetarian you have to add 32 and 80 that gives you 112. then, you subtract 160 and 112 that gives you 48. to check your answer you add 32, 80, and 48 that gives you 160.