Translate the question into an equation. Do not solve.What number is 7% of 21?
A. n ? 7% = 21
B. n = 7 ? 21
C. n ? 7 = 21
D. n = 7% ? 21
Answer: D
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Find the area of the shaded region of the figure. Use 3.14 for ? as necessary.
A. 40 in.2 B. 16 in.2 C. 48 in.2 D. 24 in.2
Simplify the expression. Assume that all variables are positive and write your answer in radical notation.
? 
A. 
B. 
C. 
D. 
Provide an appropriate response.Does every straight line have an x-intercept? If not, give an example of an equation whose graph does not have an x-intercept.
What will be an ideal response?
Provide an appropriate response.Let P be a 2 × 2 matrix that has a multiplicative inverse. Which of the following statements are false? (Let 0 represent the 2 × 2 zero matrix.)(i) 0 ? P = 0(ii) PP-1 = 0(iii) P-1P = I2(iv) PP-1 = P
A. (iv) B. (ii) C. (i), (iii) D. (ii), (iv)