I need the work and the answers Multiply the polinomios

5) (2x - 2)(2k - 3)

6) (31 + 2)(n + 2)

7) (b + 3)(6 - 3)

8) (8 + 8r)

Can some one me with this math problem?

D(5, 7). e(4,3), and f(8, 2) form the vertices of a triangle. what is mzdef? oa. 30° ob. 45° oc. 60° od 90°

Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months