please help I forgot how to do this

27 is what percent of 108? 27 is % of 108

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.