Can someone help me solve this integral plsss?

integral of (2xˆ3+3xˆ2+x)/(xˆ2+1) dx

225/100 of last years cost. write each fraction as a decimal and as a percent

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square