Need answer fast

what is the solution set?

−4.9x+1.3> 11.1

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x ?

This is different from the first one can someone me

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?

What is the surface area of a cube with the volume of 729 ft?