The table contains Sandra's Lap times (in minutes). If you want to know the total duration in minutes for the recorded lap times, you have to add all these 12 times:

Answer: correct choice is C
-5,120
This is because you are multiplying each by -4, like 80x-4=-320
Let w be the width.
2(2w) + 2w = 54.
4w+2w = 54
6w=54.
w=9
So length equals twice that...I think you can solve that on your own. xD
Answer:
It should be 12+20= 32 ft
Step-by-step explanation:
Answer:

Step-by-step explanation:
To find the equation of a line using slope and a point, first use the slope to create the basic line using the slope and work from there.
For instance, the base equation here is

This line passes through the point (0, 0).
You can then plug in a value for x. In this case, use the value of 3, as it corresponds with your question.

A point on the line of y = 2x would thus be (3, 6).
To make the y-value equal -3, you must then subtract from the original equation. There are 9 units between 6 and -3, so you must subtract nine units in the equation. You should get this at the end:
