Find the following. Assume that letters can represent any real number.
A. 
B. 
C. a + b
D. 
Answer: D
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Measurements are made at two different times. Find the absolute change and then find the percentage change. Round answers to the nearest tenth if necessary.The population of Placerville grew from 4740 a decade ago to 7040 today.
A. Absolute change: 2300 Percentage change: 32.7% B. Absolute change: 2300 Percentage change: 48.5% C. Absolute change: 32.7% Percentage change: 2300 D. Absolute change: -2300 Percentage change: 48.5%
Translate the phrase to an algebraic expression. Use x to represent "a number."Find the difference of -22 and a number.
A. x + (-22) B. x - (-22) C. -22 - x D. -22 - (-x)
Provide an appropriate response.Write an expression and simplify to find the area of the following:
What will be an ideal response?
Divide and, if possible, simplify.
A. 2a20z35 
B. 2a4z7
C. 2a20z35
D. 2a15z30 