The price of a postage stamp in 1982 was $0.20. Today a postage stamp costs $0.49. What is the percent increase in the price of U. S. postage stamp?

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.

What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio

What is the measure of angle x? 37° 82° x°