Solve for the missing variable, then find each angle measure. Finally, classify the figure completely. How would I do this?

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)

What is the size of the matrix resulting from

How do i multiply two digit numbers