I need help quick, its super hard

Q

Step-by-step explanation:

The nearest perfect square of sqrt10 is sqrt9 and sqrt 16, representing a 3 and 4.

Thus, we can conclude that sqrt10 is between 3 and 4.

Notice sqrt 10 is very close with sqrt9 than sqrt16, it should be closer to 3 rather than 4.

The only point that fits the context is Q

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

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step-by-step explanation: