Choose the most reasonable unit of measure.Area of a photograph: 23 
(in.2, ft2, yd2, mi2)
A. yd2
B. mi2
C. ft2
D. in.2
Answer: D
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Use the information below to determine the cardinality of the set. U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z}n(A' ? B)
A. 3 B. 9 C. 8 D. 2
Provide an appropriate response.
Find and explain any mistake in the following problem. What percent of 40 is 120? 
= 
120 × R = 100 × 40
120R = 4,000
R = 4,000 ÷ 120
R = 
What will be an ideal response?
The planet Mercury travels in an elliptical orbit with eccentricity 0.703. Its minimum distance from the Sun is  FIGURE 1.png)
km. If the perihelion distance from a planet to the Sun is a(1 - e) and the aphelion distance is a(1 + e), find the maximum distance (in km) from Mercury to the Sun. Select the correct answer.
 multiple choice.png)
Find the angle between the given vectors. Round to the nearest tenth of a degree.u = 2j, v = 8i - 3j
A. -20.6° B. 76.5° C. 134.6° D. 110.6°