The ratio of boys to girls at the beach cleanup was 7: 8 if there were 42boys how many girls were there

The jones farm has 24 cows that each produce 52 quarts of milk a day. how many quarts are produced each day altogether

Need on this one asap im almost done with this subject

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.