Let's call the unknown amount of money <em>x</em>
Betty spend 5/12 of her money (5/12)x and had 42 dollars left. Translated,

Solving,



Answer: $72
The real answer is y=-1/2+9 !
1/2 (14x-2)-1/4(4x-24) = 6x + 5
Answer:
2.4 ft
Step-by-step explanation:
h = v/ pie r^2
Answer:
I hope my drawing explains well lol... h = 16
Step-by-step explanation:
So basically first you need to find x (the one in the drawing), by doing so, you just have to use the formula,

You substitute in the speed and the time given,

Then, you use the Pythagorean theorem,
