Which steps could be part of the process in algebraically solving the system of equations, y + 5x = x2 + 10 and y = 4x 10? Select two options.
Dy = x2 + 5x + 10
O y + 5x = x2 + 10 + 4x – 10
mox2 - 9x
W O = x2 - 9x + 20
One x-value of a solution to the system is 4.
PLEASE HELP

You estimate that a kitten weighs 8 pounds the actual weight of the kitten is 6 pounds what is the percent error rounded to the nearest hundreth of a percent

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How do you solve a question like this?