Solve the problem.Write an expression in simplest form that represents the perimeter of the rectangle. Then use the expression to find the perimeter of the rectangle if x is 23.
A. 8x + 40; 224
B. 2x + 10; 56
C. x(x + 10); 759
D. 4x + 20; 112
Answer: D
Mathematics
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Fill in the blank with one of the words or phrases listed below. 
Use the facts below. 2 ? 3 = 6
4 + 17 = 21
20 - 9 = 11
The 9 above is called the 
.
A. subtrahend B. difference C. addend D. minuend
Mathematics
Solve by the substitution method.8x + 7y = -7 -6x - 4y = 4
A. (-1, 0) B. (0, 0) C. (0, -1) D. (-7, 4)
Mathematics
Determine whether the relation represents a function. If it is a function, state the domain and range.{(2.44, 3.24), (2.444, -3.2), (
, 0), (2.33, -2)}
A. function
domain: {3.24, -3.2, 0, -2}
range: {2.44, 2.444, 
, 2.33}
B. function
domain: {2.44, 2.444, 
, 2.33}
range: {3.24, -3.2, 0, -2}
C. not a function
Mathematics
Evaluate.-90
A. 0 B. -9 C. -1 D. 1
Mathematics