Set 7x-4 and 31 equal to each other
7X-4=31
Add four to both sides
7X=27
X=3
The answer is D
Answer:
72 cubic units
Step-by-step explanation:
V=lwh
l=6
w=4
h=3
6*4*3 = 72
Hope this helps.
Answer:

Step-by-step explanation:
Given m = - 
Given a line with slope m then the slope of a line perpendicular to it is
= -
= -
= 