Answer:
9m^2 + 18m + 9
Step-by-step explanation:
(3m + 3)2
Square ;
(a + b)^2 = a2 + b2 + 2ab
(3m + 3)2
= (3m)^2 + (3)^2 + 2 (3m)(3)
= 9m^2 + 9 + 18m
= 9m^2 + 18m + 9
Answer:
23 tables.
Step-by-step explanation:
282- 8 = 274 274 divided by 12 = 22.8 round to the nearest whole number which is 23.
True!
<h2>
Explanation:</h2>
The Cartesian coordinate system is formed by two perpendicular axes, which are the x-axis and y-axis. In this problem, we are given two lines:

- The line
is parallel to the y-axis and has an undefined slope. - The line
is parallel to the x-axis and has a slope of zero.
Since the x and y-axes are perpendicular, then the lines
are also perpendicular.
<h2>Learn more:</h2>
Cartesian coordinate system: brainly.com/question/2141683
#LearnWithBrainly
Answer:
$21
Step-by-step explanation:
21+42=63
x=63:3
x=$21