If the y-intercept of a line is 4, what could be an equation for this line?
a) y = 1/2x + 4
b) y = 4x
c) y = 4x + 3
d) y = x - 4

What could explain what happened when the time was equal to 120 minutes

In what organelle does photosynthesis take place?

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)