Answer:
ok
Step-by-step explanation:
All you have to do is divide the 120 by 4 because you will be splitting it up into a individual hour. So 120 divided by 4 = 30.
The plumber charges $30/hour.
Answer: M (slope) = -1 / -3 = 0.3
Step-by-step explanation:
Answer:



Step-by-step explanation:
Given
Represent
3-point word with T;
2-point with U and
1-point with V
--- (1)
If total questions is 30, then
--- (2)
If total points is 55, then
--- (3)
Substitute 5 + V for U in (2) and (3)
--- (2)


---- (4)
--- (3)





Divide through by 3
---- (5)
Subtract (5) from (4)



Recall that:



Substitute 10 for V in (5)


