Determine an equation of the line tangent to the curve Y = 5x-4 at the point with x- coordinate 4.

Please find the  t-intercepts of the polynomial functions: C(t)=3(t+2)(t−3)(t+5) Can I please get a typed answer? I am resubmitting because I could not read the handwriting in some places for the handwritten answer on speckled paper that I just received. I can wait longer for a typed answer with a clean background. Thank you so much!

Find the equation of the tangent to the curve y= 3 + 2x - x 2