Zad 2 str 18 podręcznik klasa 5 część 2

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Use the x-intercept method to find all real solutions of the equation. x^3-10x^2+27x-18=0

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?