Answer:
Step-by-step explanation:
This is simple: we need to only do 2 steps
1) Convert to feet
2) Get the area
1) Converting to feet is just
(ignore the use of this it's just to show the differnt things to multiply
Now we have a length of 21 and a width of 12 FEET.
2) To solve for the area, we need to multiply both dimensions.

So the answer is 252^2 FEET (DONT FORGET THE UNIT SQUARE FEET)
9514 1404 393
Answer:
(c) 144 m²
Step-by-step explanation:
The surface area can be calculated from ...
SA = 2(LW +H(L+W))
SA = 2((6 m)(6 m) +(3 m)(6 m +6 m))
= 2(36 m² +(3 m)(12 m)) = 2(36 m² +36 m²) = 2(72 m²)
SA = 144 m²
_____
<em>Additional comment</em>
The units of area are square meters (m²). The units of volume are cubic meters (m³).
Answer:
A repeating decimal or recurring decimal is decimal representation of a number whose digits are periodic (repeating its values at regular intervals) and the infinitely repeated portion is not zero.
Step-by-step explanation:
Answer:
A i think.
Step-by-step explanation:
Cake=x
Pie=y
x+y=15
5x+7y=91
(x+y=15)-7
5x+7y=91
-7x+(-7y)=-105
5x+7y=91
-2x=-14
x=7
They sold 7 cakes