Answer:
u=18
Step-by-step explanation:
u/3 =6
Multiply each side by 3
u/3*3 =6*3
u = 18

Explanation
Step 1
the density of an object is given by:

Step 2
let

Step 3
replace,

I hope this helps you
Answer:
y = -10
Step-by-step explanation:
(-7x+3y) - (-7x +10y) =-65 -(-135)
-7x + 3y + 7x -10y = 70
-7y = 70
y = -10
The answer is A. Slope is rise/run. According to the graph, you can trace out and see that it rises 1 and goes to the right 4 times. This means that it has a positive slope of 1/4. And the line crosses the y intercept at y = 3
So answer choice A is correct.