Find the exact value of the expression.
A. 
B. 
C. 
D. 2
Answer: A
Mathematics
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Translate the problem situation to a system of equations. Do not solve.The sum of two numbers is 86. Five times the smaller number minus twice the larger number is 171. What are the numbers?
A. x + y = 86; 5x - 2y = 171 B. x + y = 86; 2x - 5y = 171 C. x - y = 86; 5x + 2y = 171 D. x + y = 86; 5x + 2y = 171
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 
B. -4
C. 2
D. - 
Mathematics
Perform the requested evaluation.Given g(x) = 5x + 1, find g(a + 1).
A. 
a + 1
B. 5a + 1
C. 5a - 1
D. 5a + 6
Mathematics
Find the LCD for the fractions in the list.
, 
A. 19y7 B. 30y5 C. 10y5 D. 30y7
Mathematics