Need help ASAP please

Answer this question only if you know the 30 points and

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height