Write the sum in summation notation.1 + 3 + 5 + 7 + . . . + 31
A. 
B. 
C. 
D. 
Answer: B
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Write a system of equations that will solve the problem. It is not necessary to solve the problem. Alexandra works for two clients during one month. She works a total of 180 hours during the month. She works 50 hours more for one client (y) than for the other (x).
A) x + y = 180, x = y + 50 B) x - y = 180, x = y + 50 C) y - x = 180, y = x - 50 D) x+y = 180, y = x + 50 E) x + y = 180, x - y = 50
Solve the problem.Alex always takes $20 more than he anticipates needing on a date. If Alex takes $35 on his date with Judith, find the amount of money Alex anticipates needing for this date.
A. $20 B. $15 C. $35 D. $55
Solve the system of equations by graphing.
A. 
B. 
C. 
D. 
E. 
Solve.The sum of three consecutive integers is 528. Find the integers.
A. 175, 176, 177 B. 174, 176, 178 C. 174, 175, 176 D. 176, 177, 178