Answer:
a=7
Step-by-step explanation:
step one: divide both sides by 2
now you will have 
step two: divide 14 by 2
14/2 is 7 so a is equal to 7
Answer:
i have no idea
Step-by-step explanation:
X0.10. xtimesy (y being every minute) = 8.40 (Money that she spent extra) Well 8.40 divided by 0.10 is 84. so she went 84 mins over