Write as a subtraction problem and evaluate.The difference of 19 and -11
A. 11 - 19; -8
B. 19 - (-11); 30
C. -11 - 19; -30
D. 19 - (-11); 8
Answer: B
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Perform the indicated operation.Experiments on a new composite material yield
- 
.Simplify the expression.
A. 3K - 
?
B. 3K - 
?
C. K - 
?
D. K - 
?
Solve.The parallelogram has base length 5y5 meters and height 4y6 meters. Find its area as an expression in y. 
A. 9x30 sq m B. 20x11 sq m C. 9x11 sq m D. 20x30 sq m
Determine if the given ordered triple is a solution of the system.(-2, 5, -5) x + y + z = -2 x - y + 5z = -322x + y + z = -4
A. solution B. not a solution
Find the nth term and the indicated term of the arithmetic sequence whose initial term, a, and common difference, d, are given.a = 9; d = -9an = ?; a13 = ?
A. an = 18 - 9n; a13 = -54 B. an = 18 + 9n; a13 = -99 C. an = 9 - 9n; a13 = -99 D. an = 18 - 9n; a13 = -99