1/2(2g-3)=-4(g+1) show work do this asap

It says factor each expression 49x-28?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte