Waterman Gebula bought in a store, where the prices of all goods were listed in whole scales. If Gebula If he drank 2 crayfish, 3 clams and 1 pike, he would pay 49 scales. If he drank 5 more crayfish, 11 clams and 1 pike, he would pay
a total of 154 scales. How many scales would pay for 1 crayfish, 2 clams and 3 pike? Specify all options.

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.

The surface area of the triangular prism is .

20 ! brainliest ! add and simplify your answer.