So far, Jackie has read 217 pages
In order to determine the total number of pages Jackie read, we would have to determine the number of pages she read each day and add these pages together
- Number of pages she read on Monday =
x 252 = 126 pages - Number of pages she read on Tuesday = 28 pages
- Number of pages she read on Wednesday =
x 252 = 63 pages
The total number of pages she has read so far = 126 + 28 + 63 = 217 pages
A similar question was solved here: brainly.com/question/24708342?referrer=searchResults
20 the answer is 20 because you plug in 4 for n.
Note that any number divided by 0 is undefined.
From the problem,

Since 87 is divided by 0, the answer is undefined
Mass of an element = 310 grams
Percentage of the element that will decay in a minute = 5.7%
Quantity of the element that will decay in one minute :



Thus, 17.67 grams of the element will decay every minute.
Quantity of element that will decay after nine minutes :


Thus, 159.03 grams of the element will decay after 9 minutes.
Quantity of element that will remain after 9 minutes :


Thus, 150.97 grams of the element will remain after nine minutes.
We can round off 150.97 to 151.00.
Therefore, <u>151.00 grams</u> of the element will remain after 9 minutes.