four and negative four :)
The slope-intercept form:

m - slope
b - y-intercept
We have the slope m = 5 → 
and point (-2, 0). Substitute:

<em>add 10 to both sides</em>

<h3>Answer: y = 5x + 10</h3>
To solve this problem, just use multiplication.

You can somewhat think of this situation as a sort of tree. You start with 7 large branches representing the pants, then for every one of those you have 3 medium-sized branches to represent the pairs of pants. Each one of those has 5 sticks for the ties, which in turn each have 6 leaves to represent the jackets and therefore a complete outfit. The solution is found by getting the total number of leaves on the tree.
You would add 4.40 to 55.50 to get 59.90. because the sales tax is 8% which is 0.08 cents and multiply that by 55 to get 4.40