Find the value of b
A.56
B.140
C.65
D.230

Pls! does anybody know a shortcut for answering these types of questions in the future?

Simplify the expression below -3(10x+4y)+6(6x-2y)

1.what effect does replacing x with x−4 have on the graph for the function f(x) ? f(x)=|x−6|+2 the graph is shifted 4 units up. the graph is shifted 4 units down. the graph is shifted 4 units left. the graph is shifted 4 units right. 2.what are the coordinates of the hole in the graph of the function f(x) ? f(x)=x^2+3x−28/x+7 3.which graph represents the function?