Which of the following ordered pairs represents the solution to the system given below? (4 points) 2x + y = 20 4x − 2y = 40 a.) (10, −10) b.) (10, 0) , 10) d.) (4, 2)

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

Your company withheld $4,463 from your paycheck for taxes. you received a $713 tax refund. select the best answer round to the nearest 100 to estimate how much you paid in taxes.

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4