To find the sum and difference of the two rocks, you would do:
Answer:
The slope of problem 11 is

The slope of problem 10 is

Took 3 of us in grade 10 but johns present age is 77.5 and his sister is 72.5
If the line is parallel, it has the same slope. So now just find the y intercept and put it into slope-intercept form
Answer:
w=4
Step-by-step explanation:
2(48)+2(8w)+2(6w)=208
1) Start by Distributing the value outside of the parenthesis:
96+16w+12w=208
2) Combine alike terms:
96+28w=208
3) Subtract 96 from both sides:
28w=112
4)Divide both sides by 28 to isolate w:
w=4
Let me know if you do not understand :)