T^2-t=12
t^2-t-12=0
(t-4)(t+3)=0
t=4, -3
Stage B would be 70km since 5/7 is stage B and 5 x 14 = 70
The number "R" could be "A" and "D" because the range is 14 it cant be "B" or "C"
<em>So to solve for a variable, you have to isolate that variable onto one side.</em>
<h3>14.</h3>
Firstly, multiply both sides by j: 
Next, divide both sides by k and <u>your answer will be:
</u>
<h3>15.</h3>
Firstly, add g on both sides: 
Next, multiply both sides by 5 and <u>your answer will be:
</u>
<h3>16.</h3>
Firstly, subtract 5p on both sides: 
Next, divide both sides by 9 and <u>your answer will be
</u>