Answer:
it should be 378 = w(241 - 223)
<span>To estimate 586 - 321, you can round the numbers up or down to the nearest five.
586 can either become 570, rounding up, or 585, rounding down, which is closer. 321 becomes 320. It's not close enough to 325, nor to 315, for either of those to be good choices. 570 - 320 = 250 and 585 - 320 = 265. The actual solution to the original problem is 265, so, the second estimate, because they both go down by 1, is the closest.</span>
16/80 = 1/5 = 0.2
Therefore, 0.2 x 100% = 20%.
You do 250 divided by 9 and get 27.7777777777 you round that to 27.8 which is your answer
I think the answer is 2 weeks 6 days because if over the course of 2 weeks they took 12 I ready quizzes the he needs 18 quizzes and it leaves 1 day extra