Last week, it rained \(g\) inches. This week, the amount of rain decreased by 5%. Which expressions represent the amount of rain that fell this week? Select all that apply.

Decide whether or not each equation represents a proportional relationship.

1. Volume measured in cups (\(c\)) vs. the same volume measured in ounces (\(z\)): \(c = \frac18 z\)

2. Area of a square (\(A\)) vs. the side length of the square (\(s\)): \(A = s^2\)

3. Perimeter of an equilateral triangle (\(P\)) vs. the side length of the triangle (\(s\)): \(3s = P\)

4. Length (\(L\)) vs. width (\(w\)) for a rectangle whose area is 60 square units: \(L = \frac{60}{w}\)

Add.

1. \(5\frac34 + (\text{-}\frac {1}{4})\)
2. \(\text {-}\frac {2}{3} + \frac16\)
3. \(\text{-}\frac {8}{5} + (\text{-}\frac {3}{4})\)

In each diagram, \(x\) represents a different value. For each diagram,

1. What is something that is definitely true about the value of \(x\)?

2. What is something that could be true about the value of \(x\)?

A number line labeled A with four tick marks. Number line A. Beginning at first tick mark, labeled negative 1, x, 0, 1. 

A number line labeled B with four tick marks. Number line B. Beginning at first tick mark, labeled negative 1, 0, 1, x. 

A number line labeled C with four tick marks. Number line C. Beginning at first tick mark, labeled negative x, negative 1, 0, 1. 

A number line labeled D with four tick marks. Number line D. Beginning at first tick mark, labeled negative 1, 0, negative x, 1.