1/2 of 30= 1/4 of [  ]

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?

At a pizza shop 70% of the customers order a pizza 25% of the customers order a salad and 15% of the customers order both a pizza and a salad if s customer is chosen at random what is the probability that he or she orders either a pizza or a salad