How do you do this? please help!! thank youuu

answer rounded up is -31.84

Step-by-step explanation:

So first, square root of 6 is 2.4494, and then you times that by 2, and then you do square root of 54 which equals to 7.34846, and then you times 5 by that, and then you do 2 times square root of 6 minus 5 times square root of 54. Hope it helps

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

14.29%

step-by-step explanation: