Which composition of similaritiy transformation maps polygon ABCD to polygon A'B'C'D'

Events a and b are independent. the probability of a occurring is 2/5. the probability of b occurring is 1/4. what is p(a and b)?

The circle below is centered at the point (3, 1) and has a radius of length 2. what is the equation?

Arectangular garden measures 5m by 7m. both dimensions are to be extended by the same amount so that the area of the garden is doubled. by how much should the dimensions increase, to the nearest tenth of a metre?