What does 48x39=free points!!

(also this is a pic for a friend!)

Which expression is equivalent to? assume x > 0 and y > 0.

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)

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.