Find the discriminant of this equation x2 - 5x = 4

a) 3

b) 9

c) 18

d) 41

G(x) 16g(x) = 2 sin(2x - π) + 4. using complete sentences, explain how to find the minimum value for the function.

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

I’m stuck on this equation, anyone got the answer?