Answer:
IT is 41.5 heres the steps
Step-by-step explanation:
first step 21 divided by 2 = 10.5
Then you do 10.5 + 1 = 11.5
then you do 11.5 times 5 = 57.5
Then 2 times 2 times 2 times 2= 16
then 16 - 57.5 = 41.5 is your answer
Y=4.1 because it if take ten. And multiply it by three then take negative 9Y equals seven and divided by nine gives you 4.1
The expression should be $20.00-($0.40p)=change recieved