Step-by-step explanation:
50+45%=72.5
50-45%=27.5
50×45%=22.5
Answer:

Step-by-step explanation:
Apply the exponent rule
to a


Apply the exponent rule to b

Apply the exponent rule 

Answer: 81.82%
Step-by-step explanation: what you made - the ingredients cost so 37.51 - 6.82 = 30.69 that is her profit now we put it in percentage form which is 81.82% if there is any part you need me to go deeper to explain please dont hesitate to ask!
Hope this helps!!! Good luck!!! ;)
The answer is
15m^2n + 4/n
Hope that helps, have a nice night or day <4