How my population be a factor in tropical rain forest biome if the area receives very little rain for a extended period of time

What are the vertical asymptotes of the function f(x) =5x+5/x2 + x-2

Nick and nora are married and have three children in college. they have an adjusted gross income of 47,400. if their standard deduction is 12,600 itemized deductions are 14,200 and they get an exemption of 4000 for each adult and each dependent what is their taxable income

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?