<em>*To solve for a specified variable, you need to isolate that variable onto one side.</em>
<h3>11.</h3>
Firstly, subtract 5r on both sides: 
Lastly, divide both sides by 2 and <u>your answer will be
</u>
<h3>12.</h3>
First, subtract z on both sides of the equation: 
Next, divide both sides by y and <u>your answer will be
</u>
<h3>13.</h3>
Firstly, multiply both sides by b: 
Next, divide both sides by c and <u>your answer will be
</u>
Answer:
Step-by-step explanation:
V=5
Log81 (9) = 1/2
The 81 is a subscript don’t know if I could type it like that so I just put it like that
Your answer is 40mm
3+12+12+13
=40
Multiply the number of tosses by the percent of heads:
20 tosses x 0.75 = 15
The answer is 15.