Which proportion can be used to find 45% of 300

Can someone answer this question? : )

Complete each statement from the information given and the triangle criterion you used. if the triangles cannot be shown to be congruent, leave the box for the second triangle blank and choose for reason “cannot be determined.” carbon - regular hexagon. ∆can ≅ ∆ by

Determine domain and range, largest open interval, and intervals which function is continuous.