Complete the recursive formula of the geometric sequence 10, 6, 3.6, 2.16,
a(1) =
a(n) = a(n − 1).

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)

6x - 8 = 16 solve the following equation. then place the correct number in the box provided.

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?