cantthinkofausername

Expand. $2\cdot7b=14b$

$2\cdot-6=-12.$

$-5\cdot2b=-10b$

$-5\cdot-3=15$

Add up all the terms and get...

$4b+3$

Oh yeah, ill change it.

Uh, only one of the questions are alike and that doesn't answer his 1st and 3rd questions.