Answer:
one 40% discount
Step-by-step explanation:
lets use 100$ total for an example.
Say we have 40% of 100 so the total would be 60$ but it we have 20% and then another 20% off that we would have a final total of 64$\
Prove: 100*.4=40 100-40=60
100*.2=20 100-20=80, 80*.2=16 80-16= 64$
Answer:
The answer is multiplying by -2
Step-by-step explanation: