Answer:
and 
Step-by-step explanation:
Given

Required
Find x and y
In the second equation. Assume that:

Substitute
in the first equation


Collect like terms


Multiply through by 5


Solve for x

Substitute this value of x in 





Answer: Option B 3!((6×5×4)-1)
Step-by-step explanation:
6! - 3!
= (1×2×3×4×5×6) - (1×2×3)
= 720 - 6
= 714
As you told you forgot to put options lemme answer it.
It will be option B
3!((6×5×4)-1)
It will be 6((6×5×4)-1)
= 6(120) -6
= 720 - 6
= 714
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Answer: Once
Step-by-step explanation: If you do 100 - 10 you get 90 as result, therefore you don't have 100 anymore making the only logical answer to this "ONCE".
You would need C) $35 to stay within your budget.