Answer:
2.4
Step-by-step explanation:
8.4/7=1.2
1.2x2=2.4
Ahh it’s the second option I believe!!
Answer:
Hi! The formula for surface area is:
area = 2lw + 2lh + 2hw
(l = length, w = width, h = height.)
<em>Hope this helps! :)</em>
let's notice, this is a Cube, namely all equal sides, and mind you it has 6 sides, Check the picture below.

A line that is parallel to another line will have the same slope, in our case, the slope of 3. Therefore, we can just change the y-intercept to create any line parallel to y=3x+5 (just remember to keep the slope the same). For example, y=3x+5, y=3x-9, and y=3x+6.2 are all equations that are parallel to y=3x+5.
:)