What rigid transformation would map abc to edc?

Leo has b boxes of pencils. each box contains 6 pencils. he has a total of 42 pencils. the equation that represents this situation the value of b that makes the equation true the first one is b+6=42,6b=42,b=42+6,or 42b=6 the second one are 7,836 48

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

What is the measure of angle x? answer