Answer:
what am I choosing the lines of symmetry on?
I don't know can u explain
Answer:
1080hrs
Step-by-step explanation:

days cancel, redefine week as =5days

weeks cancel redefine 4 weeks = 1 month

months cancel, redefine 9months= 1years

1080hrs per year (if I mathed 120x9 correctly that is, I didn't use a calculator so please double check that 120x9=1080)
Answer:
the system has no solutions
Step-by-step explanation:
the systems are shaded in different directions with no part of them intersecting
this means that there are no solutions
Answer:
(6, 3 )
Step-by-step explanation:
Given the 2 equations
5x - y = 27 → (1)
5x + 4y = 42 → (2)
Multiplying (1) by - 1 and adding to (2) will eliminate the x- term, that is
- 5x + y = - 27 → (3)
Add (2) and (3) term by term to eliminate the x- term
5y = 15 ( divide both sides by 5 )
y = 3
Substitute y = 3 into either of the 2 equations and solve for x
Substituting into (2)
5x + 4(3) = 42
5x + 12 = 42 ( subtract 12 from both sides )
5x = 30 ( divide both sides by 5 )
x = 6
Solution is (6, 3 )