I need help hurry !! Please , which one is correct?

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?

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

The square root of 9x plus 7 plus the square rot of 2x equall to 7