If 45% of a persons mass is 36kg what is the persons total mass

Question

I need help because I have tutor tomorrow and I haven’t done it plus i been away for 2 weeks and I need to do all of my questions or my tutor would get mad and tell my parents I haven’t done my hw

Answer 1

45% of m=36 kg

0.45*m=36

m=36/0.45

m=3600/45

m=400/5

m=80 kg

check: 45% of 80=0.45*80=36