Kevin’s family has a history of diabetes. the probability that kevin would inherit this disease is 0.75. kevin decides to take a test to check if he has the disease. the accuracy of this test is 0.85.what is the probability that kevin has diabetes and the test predicts this? 0.0375 0.1125 0.2125 0.6375 0.8725

To get the intersection of the both event you can simply multiply the both events because those two events are independent to each other so the formula would be (0.75) time (0.85) and the probability would be 0.6375. I hope you are satisfied with my answer and feel free to ask for more. 
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The answer would be 0.6375. you take the probability that Kevin inherited the disease which is 0.75 and times it by the probability that the test is accurate which is 0.85. you will come up with 0.6375 which on plato is answer choice D.

C.about 10% i think

The answer is c, i, iii, and iv. this is because farming and mining deal with harvesting raw materials, construction work falls under manufacturing, and piloting a plane is a service. ii is wrong because making bread is using  raw materials to produce goods, which would fall under the secondary sector, not primary.