Solve.The nutrition chart on a bag of flavored pretzels says that each serving contains 0.28 grams of cholesterol. The chart also says that there are 3 servings in the bag. How many grams of cholesterol are in the entire bag of pretzels?
A. 0.84 g
B. 0.58 g
C. 0.64 g
D. 0.78 g
Answer: A
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Solve.A whispering gallery is a room in the shape of an elliptic reflector. If a source of sound is placed at one focal point of an elliptic reflector, the sound is reflected through the other focal point. If one person speaks at one focal point, then another person at the other can hear sounds as faint as a whisper. If the whispering gallery is based on the ellipse 
+ 
= 1, how many units from the center of the ellipse would the two people stand?
A. 15 units B. 9 units C. 12 units D. 144 units
Solve and check your solutions.- 
x = - 
A. x = 
B. x = - 
C. x = - 
D. x = 
Verify that the values of the variables listed are solutions of the system of equations.
x = 6, y = 5
A. solution B. not a solution
Graph the function.f(x) = ex - 1
A. 
B. 
C. 
D. 