1. Decide whether or not each equation represents a proportional relationship. a. Volume measured in cups (c) vs. the same volume measured in ounces (z): c =
) =
b. Area of a square (A) vs. the side length of the square (s): A = 32
c. Perimeter of an equilateral triangle (P) vs. the side length of the triangle (s):
3s =P
d. Length (L) vs. width (w) for a rectangle whose area is 60 square units: L =
: 0

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.

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.