It looks like the differential equation is

Multiply both sides by 1/(<em>x</em> + 1) :

The left side is now a derivative of a product,

Integrate both sides with respect to <em>x</em> :

Solve for <em>y</em> :

What is the absolute value of 22?
Absolute value<span> is a measure of the '</span><span>distance a number is from 0'</span>
The <span> absolute value of 22 is 22. 22 is the distance it is from 0. </span>
The correct answer is 70 MPH because when 50 and 70 are added together and divided by 2, you get 60.