Write the percent problem as an equation.Find 19.7% of 61.
A. n = 61% ? 19.7
B. n = 19.7% ? 61
C. n ? 19.7% = 61
D. 19.7 = n ? 61
Answer: B
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Solve the problem.The intensity I of light varies inversely as the square of the distance D from the source If the intensity of illumination on a screen 5 ft from a light is 3 foot-candles, find the intensity on a screen 20 ft from the light.
A. 
foot-candle
B. 2 foot-candles
C. 
foot-candle
D. 1
foot-candles
Find the perimeter of the given square or rectangle.A 14 in. square ceramic tile
A. 56 in. B. 28 in. C. 196 in. D. 42 in.
Use the power rules for exponents to simplify. Write the answer in exponential form.(10rt)9
A. 109r9t B. 109r9t9 C. 10r9t9 D. 109rt9
Solve the right triangle.a = 3.5 m, B = 21.8°, C = 90°Round values to one decimal place.
A. A = 68.2°, b = 3.4 m, c = 4.9 m B. A = 68.2°, b = 1.4 m, c = 3.8 m C. A = 68.2°, b = 0.3 m, c = 3.5 m D. A = 68.2°, b = 3.4 m, c = 3.8 m