Tools Card 3 of 8
Alg1.4.11 Practice 3
(Algebra 1, Unit 4, Lesson 5)
C gives the cost, in dollars, of a cafeteria meal plan as a function of the number of meals
purchased, n. The function is represented by the equation C(n) = 4 + 3n
a. Find a value of n such that C(n) = 31
is true.
Type the answer in the box below.
C(n) = 31 is true when n =
b. What does that value of n tell you about the cafeteria meal plan?
Type your response in the space below.

Solve: 3x+y=6 4x-2y=18 show all work !

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

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.