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A student needs at least 150 signatures from classmates to run for class president. The student collects 30 signatures on Monday and collects enough additional signatures on Tuesday to run for class president. Which inequality represents the number of additional signatures, s, that the student collects on Tuesday?
s + 30 ≤ 150
s + 30 ≥ 150
s − 30 ≤ 150
s − 30 ≥ 150
The shaded region shown represents the solutions to which inequality?
y < 3x + 4
y < 3x − 4
y > 3x + 4
y > 3x − 4
r > 0.54t
The given inequality describes the total rainfall r, in inches, in a certain area over a period of t hours, where t ≤ 4. Which of the following describes this rainfall?
An average rainfall of exactly 0.54 inches per hour
An average rainfall of more than 0.54 inches per hour
A total rainfall of more than 4 inches
A total rainfall of exactly 4 inches
y ≥ x + 9
y ≤ −8x − 9
Which point (x, y) is a solution to the given system of inequalities?
(−1, 5)
(−1, 10)
(−3, 5)
(−3, 10)