A bag contains 63 marbles, some white and some green. The ratio of white marbles to green ones is 2:7.

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)

Which of the following is a proper fraction? a. 9⁄8 b. 5⁄6 c. 7⁄3 d. 4⁄2

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.