Cynthia’s broker charges her a commission of $88 for every $1000 of stock bought or sold. cynthia bought 2,000 shares of ombor medical supplies at $35.49 apiece. as the price rose and fell, she sold off part of her holdings. when the price rose to $48.57, she sold 600 shares. the price fell somewhat to $46.10, so she sold 1,150 of her shares. when the price climbed to $53.46, she sold off the remainder of her holdings.
how much profit did cynthia make in total?

  $9,889.82

Step-by-step explanation:

Nominally, Cynthia paid ...

  2000·$35.49 = $70,980

With the broker's commission of 8.8%, she actually paid ...

  $70,980·1.088 = $77,226.24

__

When Cynthia sold, she nominally received ...

  600·$48.57 +1150·$46.10 +250·$53.46

  = $29,142 +53,015 +13,365 = $95,522

Because of the broker's 8.8% commission, she actually received ...

  $95,522·0.912 = $87,116.06

Cynthia's total profit was ...

  $87,116.06 -77,226.24 = $9,889.82

The broker made $14,652.18 on Cynthia's transactions, almost half again as much as Cynthia made.

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,