X-y=5
x=y+1
final how many solutions are there ​

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?

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

Can some one me with these questions