Find the y-coordinate of the vertex:
f(2) = 2^2- 4(2) - 5.

Factorize: x^2+8x+10 i just solved it but i don't know if the process 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?

Can some one me with these questions