19.
Weight of apple = 11 - 6 = 5 ounces
20.
Time taken by her brother = 32 - 11 = 21 mins
21.
His savings difference = $433 - $145 = $288
Weeks = $288/$36 = 8 weeks
22.
Her check without the bonus = $1204 - $500 = $704
Work hours = $704/22 = 32 hours
I hope this helped! :)