can you please help me out with this question urgently

(1) Solve for r and give your answer in interval form: r - 8 7+6 23 [3] (2) Determine the slope of the parabola y = 2r- - 5r +3 at the point P(2, 4). Write an equation for the tangent to the parabola at this point. [4] (3) Let ifr |x+ 4 (3] (ii) log: r - log16 : = 0 [3] (iii) 47 + 65 = 97 [3] 1 (iv) 52r+3 _ 505+1 42