4× + 10y=40 / 6x - 5y=20 /x+5y=14 / 8x + 6y=10 / 5x + 3y=40 / 9x +2y =35 / 2x + 4y=30 /-x 3y=20​

Name the quadrilaterals that have four equal sides.

Which function has the same domain as y=2x

Given the choice between receiving $1.000.000 in one month or a single penny-doubled everyday for the period of one month; which option would you choice? show your work to support your answer. (assume that 1 month=30 days)