Please answer number 1! Thank you have a good day! :)

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

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