There’s a question and the answer is the answer correct don’t worry about minor or major why is it incorrect

(05.08a)triangle abc is transformed to similar triangle a′b′c′ below: a coordinate plane is shown. triangle abc has vertices a at 2 comma 6, b at 2 comma 4, and c at 4 comma 4. triangle a prime b prime c prime has vertices a prime at 1 comma 3, b prime at 1 comma 2, and c prime at 2 comma 2. what is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64

Which of the following represents the factorization of the trinomial below? x^2+7x-30