I'm pretty sure this question is easy, I just forgot how to do it. Please help!!

Given abcd ac=38 and ae=3x+4 find the value of x

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.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?