Answer:
Step-by-step explanation: The area of the bedroom is
A=7yd^2
The total cost is the sum of the price rates times this area.
C=A•($21+$5)/yd^2
where C is total cost.
C=7yd^2•($21+$5)/yd^2
C=$182
Ex 1:
2/5 x 4/5
Multiply both the numerators together and then multiply both the denominators together. You would multiply 2x4 which is 8 and 5x5 which is 25. Which leaves you with 8/25 and it will stay that way because you cannot simplify it further.
Ex 2:
2/5 and 5/3
Multiply across 2x5/5x3 and you end up with 10/15 which can be simplified/reduced to 2/3 because they share a common factor of 5.
To solve this we will divide the given composite figure into three figures. The three figures will be 2 squares and 1 rectangle. Let's find their areas and add them!



<em>Thus, The area of 1st square is 9m²...</em>
- The area of second square will be also 9m², because the sides of both squares are equal.
<h3>
Now area of the reactangle⤵️</h3>
- Length = 6m
- Breadth = 7+3=10m



<em>Thus, The area of rectangle is 30m²....</em>
- Now, Add area of all the figures to get the total area.

<h3><em>Therefore, The total area of the composite figure is 48m²...~</em></h3>
It would be C. The right one makes it look horrible compared to the other, if someone did not look at the graph.
12 de 24 seria
12÷24 = 0.5
0.5=
50% entonces 12 de 24 es 50%
igual con 18 de 20
18÷20= 0.9
0.9=
90% entonces 18 de 20 es 90%