Prove(sec theta-tan theta)(sec theta+tan theta)=1

What kind of bond pays interest which is exempt from tax?

Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]