Christopher recently won $20,000 in the lottery and decides to save his money in a unique way. he saves $1.00 on the day after he won the lottery. he then saves twice as much as he did the previous day for a total period of two weeks. how much does christopher have saved by the end of this time period?

Find the value of the variable and the length of each secant segment

Suppose there is a simple index of three stocks, stock abc, stock xyz, and stock qrs. stock abc opens on day 1 with 4000 shares at $3.15 per share. stock xyz opens on day 1 with 5000 shares at $4.30 per share. stock qrs opens on day 1 with 6000 shares at $4.60 per share. the price of stock abc on day 8 begins at $3.50. the price of stock xyz on day 8 begins at $3.90. stock qrs opens on day 8 with a price of $4.50 per share. assume that each stock has the same number of shares that it opened with on day 1. what is the rate of change of this simple index over 1 week?

In a school 2/3 of the students study a language of those who study a language 2/5 study french