Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 
B. -4
C. 2
D. - 
Answer: A
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Solve the formula for the specified variable.P = s1 + s2 + s3 for s2
A. s2 = s1 + s3 - P B. s2 = s1 + P - s3 C. s2 = P + s1 + s3 D. s2 = P - s1 - s3
Use the product rule for exponents to simplify the expression, if possible. Write the answer in exponential form.g9 ? g5 ? g2
A. g7 B. g47 C. g16 D. g14
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 15 ft from the light.
A. 
foot-candle
B. 1
foot-candles
C. 2 foot-candles
D. 
foot-candle
A hot-air balloon is held at a constant altitude by two ropes that are anchored to the ground. One rope is 125 feet long and makes an angle of 64° with the ground. The other rope is 120 feet long. What is the distance between the points on the ground at which the two ropes are anchored? ? Apply the rules regarding the use of significant digits after all computations are complete. ? __________ ft.
What will be an ideal response?