If y varies inversely as x, and x= 8 when y = 4, find y when x = 2

Geometry answer picture question pls . reason and statements

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

The product of sin 30 degrees and sin 60 degrees is same as the product of