12)
Kate skates at a speed of 10 miles per hour.
She skates a course of 25 miles.
If she increases her skating speed by 5 miles per hour, how much less time will she
take?

Find parametric equations for the line tangent to the curve of intersection of the surfaces at the given point. surfaces: xsquared2plus+2yplus+2zequals=1212 yequals=33 point: left parenthesis 1 comma 3 comma five halves right parenthesis

15 points ! ~ see if you know the answer to both you!

Tyler reads 2/5 of a book on monday, 1/3 of it on tuesday, 2/9 of it on wednesday, and 3/4 of the remainder on thursday. if he still has 14 pages left to read on friday, how many pages are there in the book?