Order the group of quadratic equations: y=-4x^2, y=-2x^2, y=-5x^2

Issof claims that the scale factor is 1/2. which statement about his claim is correct

Powerful women's group has claimed that men and women differ in attitudes about sexual discrimination. a group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the united states. of those sampled, 11 of the men and 19 of the women did believe that sexual discrimination is a problem. if the p-value turns out to be 0.035 (which is not the real value in this data set), then at = 0.05, you should fail to reject h0. at = 0.04, you should reject h0. at = 0.03, you should reject h0. none of these would be a correct statement.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.