8y - (5y + 13 ) = -7​

Prove that quadrilateral is a rhombus.

Find the value of x. give reasons to justify your solutions! l, m ∈ kn

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)