Solve the equation.7 = y - 18
A. -11
B. -25
C. 11
D. 25
Answer: D
Mathematics
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Solve the given applied problem.In a particular classroom with 240 students, the rate y at which a rumor spreads is related to the number of people x who have heard the rumor according to the expression 
Determine the rate when 0.6666 of the class will have heard the rumor.
A. 6590 B. 6400 C. 6210 D. 6340
Mathematics
Simplify the expression. If any variables exist, assume that they are positive.8
- 5x
A. 13
B. 3x
C. 3x
D. 8
- 5x
Mathematics
If possible, use the graph to evaluate the expression.f(4)
A. 5 B. -10 C. Undefined D. -5
Mathematics
Graph the function.f(x) = (x - 1)2 
A. 
B. 
C. 
D. 
Mathematics