A. assuming the sales tax is already added to the 72.60 all you have to do is add 20%
Answer:
A
Step-by-step explanation:
For this case we must factor 
of the following expression:
By law of signs of multiplication it is fulfilled that:
So we have to:
Thus, by factoring we have:
Answer:
1/5 of 80 =16
16x4=64
this means he needs 16 more dollars
16/7.75=2.06451612903
this means that he has to work for two more hours.
hope this helps :)
Answer: -4.5
Step-by-step explanation: -3+(-1.5)
