Answer:
The sheet steel costed $22.41 per square meter
Step-by-step explanation:
To find the slope and y intercept, use the y=mx+b formula where m is the slope and b is the y intercept<span>.
</span><span>y=mx+b
</span>Pull the values of m and b using the y=mx+b formula<span>.
</span><span>m=7/2,</span>b=−2 where m is the slope and b is the <span>y-intercept</span>
Pretty sure it's right top corner

Length of the room is 5 m and width is 5 + 2 = 7 m.
Hope this helps.
r3t40
If it's a square all sides are 9 feet...9x9=81