One out of 47 high school ball players plays college ball. one out of 43 college

  1/2021

Step-by-step explanation:

  (professional players) = (1/43)·(college players)

  = (1/43)·(1/47·(high school players))

  = 1/(43·47) · (high school players)

  = 1/2021 · (high school players)

One out of 2021 high school players plays professional ball.

Emily bought 12 bottles of water for £5.64.

Emily sells all 12 bottles for 50p each. 12 times 50p = 6

Emily sold 12 bottles of water for £6

Profit = selling price - cost price = 6 - 5.64 = 0.36

Profit percentage =

=

= 0.0638297 * 100

= 6.4%

Emily's percentage profit = 6.4%