3 times or of her number, And 5 years at least 17. Which of the falling in a quality is properly Models list statement?

Which triangle congruence postulate or theorem justifies my claim that the steps i made using construction paper and scissors produce an isosceles triangle? was it sss, sas, asa, aas, or hl?

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?

Given that abcd is a rhombus, what is the value of x?