Solve.Isabelle went shopping for holiday presents for her family. She spent $138 on Monday, $324 on Tuesday, and $134 on Wednesday. What is the total amount of money that she spent on gifts?
A. $606
B. $596
C. $706
D. $496
Answer: B
Mathematics
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Solve the equation using graphical methods. Round to the nearest thousandth when appropriate.8x + 4(1 + x) = 3(x - 6) + 10x
A. x = -22 B. x = 22 C. x = 7 D. x = -7
Mathematics
Solve the problem.The current I, in amperes, flowing through a particular ac (alternating current) circuit at time t seconds is I = 240 sin (45?t)What is the period and amplitude of the current?
A. period = 
second, amplitude = 45
B. period = 
second, amplitude = 240
C. period = 45? seconds, amplitude = 
D. period = 
second, amplitude = 270
Mathematics
Use the slope and y-intercept to graph the linear function.h(x) = - 
x - 2
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
A. 8
+ 9
B. 6
- 5
C. 7
- 5
D. 7
- 9
Mathematics