Huixian mother buys some shares of company A on day 0. on day 7, the share price of company a is $4.60. if she sells all her sha
res pf company A and buys 2000 shares of company B on day 7, she would receive $7400. on day 12, the share price of company A is $4.80 and the share price of company B is $0.50 less than that on day 7 If she sells all her shares of company A and buys 5000 shares of company B on day 12, she would have to pay $5800. find
a. the number of shares of company A huixian mother has.
b. the share price of company B on day 12
