Zack invest $10 in the stock market at the beginning of the week he decides to invest an additional $10 at the end of the week he loses 50% of his total investment how much money does zack lose

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)

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.