Here is how to work the problems and write the expressions.
It would be 7x3 which would equal 21. Hope that helped!
Answer:
16.34
Step-by-step explanation:
Is pythagoreons Theron
256 + 11.25 = c squared
267.25 = c squared
16.34 equals approximately c
Answer:
i mean math is my second favorite subject
Step-by-step explanation:
Answer: 
<u>Step-by-step explanation:</u>
P = 2(l + b)
Divide both sides by 2:

Subtract b from both sides:

<em>Note: You can also multiply b by </em>
<em> if you want the left side to be one fraction.</em>
