Can someone help me with this question

Me what is the value of x? showing work would be appreciated - ! : )

Jessica is a custodian at oracle arena.she waxes 20 m2 of the floor in 3/5 of an hour. jessica waxes the floor at a constant rate.at this rate how many sqaures meters can she wax per hour

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.