Write interval notation.{x? x < 1}
A. (-?, 1]
B. (1, ?)
C. [1, ?)
D. (-?, 1)
Answer: D
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On the coordinate plane below, plot the points with the given coordinates.A(6, 4), B(4, -4)
A. 
B. 
C. 
D. 
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Solve.Sally and John purchased a discount card for 
. It can be used for one year at several restaurants in their area. It entitles the user to 
off all meals purchased during the year at these restaurants. If they usually spend
a year at these restaurants, how many dollars would they save by purchasing this card?
A. $320 B. $60 C. $380 D. $80
A student taking five courses keeps a record of the number of assignments due each day in all her courses. Over the course of the 60-day semester she finds on 20 days no assignments are due, on 15 days an assignment is due in one course, on 15 days an assignment is due in two courses, on 9 days an assignments is due in three courses and once during the semester she has an assignment due in 4 courses. If X is the number of assignments due on a day selected at random from the semester, find E(X).Is 
the correct answer?Enter "yes" or "no".
Fill in the blank(s) with the appropriate word(s).