Miguel started a savings account with $150. After 4 weeks, he had $450 dollars, and after 9 weeks, he had $825.
What is the rate of change of money (in dollars) in his savings account per week? (Do not include
the units when you type your answer.)

step-by-step explanation:

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock

what do you mean

have a great day