Simplify the following algebraic expressions:
-2(x-2b+1/2)
possible answers:
a) 2x-4b+1
b) 2x+4b-1
c) -2x-4b-1
d) -2x+4b-1

For a read-a-thon, jay and odhràn each started reading a book at the same time and continued reading for several hours. jay's book had 278 pages, and he read 55 pages per hour. odhràn's book had 238 pages, and he read 45 pages per hour. after how many hours did they have the same number of pages left, and how many pages were left?

Is the orthocenter of a triangle on the inside ?

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?