Solve. Round to the nearest tenth.Juliet runs out of gas in Barnhaven, South Carolina. She walks 6 mi west and then 4 mi south looking for a gas station. How far is she from her starting point?
A. 3.2 mi
B. 7.2 mi
C. 4.5 mi
D. 52 mi
Answer: B
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Suppose the quantity demanded per week of a certain dress is related to the unit price 
by the demand equation 
, where
src="https://sciemce.com/media/3/ppg__cognero__4.4_Optimization_I__media__40eed320-18ef-4be7-b526-044e4526063b.PNG" style="vertical-align:middle;" /> is in dollars and 
is the number of dresses made.
?
To maximize the revenue, how many dresses should be made and sold each week? (Hint: 
). Round the answer to the nearest integer.
?
A. 62 dresses
B. 64 dresses
C. 69 dresses
D. 67 dresses
Subtract.(-6x7 - x4y3 + x3y4 + 4y7) - (12x7 + x4y3 - 4x2y5 + 7xy6 + 3y7)
A. -18x7 + x3y4 - 4x2y5 + 7xy6 + 7y7 B. -18x7 + x3y4 + 4x2y5 - 7xy6 - y7 C. -18x7 - 2x4y3 + x3y4 + 4x2y5 - 7xy6 + y7 D. -18x7 + 2x4y3 + x3y4 - 4x2y5 + 7xy6 - y7
Write the fraction in simplest form.
A. 
B. 
C. 
D. 
In a right triangle, find the length of the side not given. Let c represent the length of the hypotenuse. Give an answer to the nearest tenth if necessary.a = 30 cm, c = 50 cm
A. b = 80 cm B. b = 10 cm C. b = 40 cm D. b = 20 cm