Simplify:
n+(n+1)+(n+2)+...+[n+(n-1)]+...+(n+ 2)+(n+1)+n

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

What is the ratio of the length of an object in yards to the length of the same object in miles?

For g(x) = 5x - 3 and h(x) = [tex]\sqrt{x}[/tex], find (g · h)(4)