no decimals allowed

uppose . f( - 9) = - 6 and f'( - 9) = - 2 g( - 9) = 6 and g'( - 9) = - 5 . h( - 9) = 2 and h'( - 9) = 9. 4 -9f(x) - 10g(x) 1. The derivative of at - 9 is equal to h(x) 2. The derivative of sin(7( - 9f(x) - 10g(x))) at - 9 is equal to 3. The derivative of tan(of(x))h(x) at - 9 is equal to gestion Help: B Written Example Submit