To find out how much more money Mia can expect to earn, we need to determine the amount she earns from selling each vacuum.
Given that Mia sold 15 vacuums and earned $1,200, we can divide the total earnings by the number of vacuums sold to find the price of each vacuum.
$1,200 ÷ 15 = $80
So, Mia earns $80 from selling each vacuum.
Now, we need to calculate the additional amount Mia can expect to earn if she sells 22 more vacuums.
To do this, we multiply the price of each vacuum by the number of additional vacuums.
$80 × 22 = $1,760
Therefore, Mia can expect to earn an additional $1,760 by selling 22 more vacuums.