Answer:
(2b+3) (b+7)
Step-by-step explanation:
2b²+17b+21
2b²+14b+3b+21
2b(b+7) + 3(b+7)
(2b+3) (b+7)
-11 =h
Step-by-step explanation:
1. 20 is the answer for it
406.75 since the equation for speed is distance over time so you would do 1627 divided by 4