Answer:
5r = 7.50
Step-by-step explanation:
As, the cost of 1 ruler = r
So, r times 5 ruler will give u the cost of 5 rulers, which is 7.50
So, 5r = 7.50
The answer is $962.09. All you do is multiply 890$ by your tax and than add your tax. Another way of doing it is take the decimal value of your 8.1% which is .081 and add 1 to get 1.081. Now that you have that you multiply 890 by 1.081 to get 962.09
Hope this helps you
Let
L----------> <span>the length of the yard
W--------> </span><span>the width l of the yard
we know that
the perimeter is equal to
</span>
![P=2*[W+L]](https://tex.z-dn.net/?f=P%3D2%2A%5BW%2BL%5D)
![72=2*[W+L] \\ 36=W+L](https://tex.z-dn.net/?f=72%3D2%2A%5BW%2BL%5D%20%5C%5C%2036%3DW%2BL)
--------> equation 1

------> equation 2
<span>substitute equation 2 in equation 1
</span>



<span>
we know that
Area of the rectangular yard is equal to
</span>

<span>
</span>
AnswerR
13
Step-by-step explanation: