Show that both 5 and -5 are solutions of the equation x=25

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents

10 points? ? +++ me asap gabriella uses the current exchange rate to write the function, h(x), where x is the number of u. s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a) gabriella averages 7.5 u. s. dollars for every 100 euros. b) gabriella averages 100 u. s. dollars for every 25 euros. c) gabriella can exchange 75 u. s. dollars for 100 euros. d) gabriella can exchange 100 u. s. dollars for 75 euros.

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?