WILL GIVE 50 POINTS! give 4 identities and proofs

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?

Which strategy is used by public health to reduce the incidence of food poisoning?

Aa at 9 a.m. it at 4 p.m. he a of $28.84.?