Which expression is equivalent to 24 ⋅ 2−7?

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction