John cut a 4 ft long piece of lumber into shorter pieces to repair his deck. He cut three pieces each 34 ft long, and two pieces each 12 ft long. How much wood did he have left?

Question 5 spring semester final exam math evaluate

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.

Write the pair of fractions as a pair of fractions with a common denominator