Gil is reading a book that has 240 pages. He already read some of it last week. He plans to read 10 pages tomorrow. By then he would be 3/4 of the way through the book. How many pages did Gil read last week?

just form equation and solve ...

step-by-step explanation:

just plug in each number for x and see which ones work and don't

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c