Since you read 3 pages on Monday and you read 3 times that number on Tuesday, the equation should be 3*3 to equal 9. Then, since you read 9 pages on Tuesday and 3 times that number on Wednesday, the equation should be 9*3 to equal 27 pages. So, on Wednesday, you read 27 pages in total.
Sorry, the given solution is not valid, and unfortunately external links are not allowed, so it will be deleted. I do not think that it is possible to visit every cell without revisiting any to go from one corner to the opposite one.
. We have a number, 5, for y, which we can substitute (plug-in) for y in the equation of the line and solve for x.
