Question 12 (Mandatory) (1 point) Find the slope of the tangent to x) = x93\" at the point (L 3). Question 15 (Mandatory) (1 point) x - x - 2 Find f'(3) if f(x) = x - 2 ( a) - 1 O b ) 2 O c) - 3 O d) 1Question 13 (Mandatory) (1 point) The mass of radon is given by 38 Me(!) = Mo , where. Mo is the initial mass of radon, in milligrams, and Man is the mass, in milligrams, after t days. If the initial mass was 200 mg, at what rate, to the nearest tenth of a milligram per day, is the radon decaying at 2 days? ( a) 25.3 mg/day b) - 26 mg/day O c) - 25.3 mg/day ( d) 26 mg/dayQuestion 14 (Mandatory) (1 point) Find f'(1) if A(x) = 2x - 1 x+2 . O a) (b) oly O d)Question 11 (Mandatory) (1 point) If A(x) = 3( 2* ), find f'(1). O a) 6 O b) 3In2 c) 6in 2 (d) 3