Given that Z-N (0,1), find the following probabilities correct to 3 significant figures. P(Z<-1.75)

Sara bought a pair of pants that were on sale for 30 percent off of the original price. if the original price of the pants was $29, what was the sales price of the pants?

How many zeros does the function f(x)=4x3-x2+1 have

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)