Evaluate the expression for the given values of the variables, if possible.a ? (-b)
a = -11, b = -3
A. -133
B. -33
C. -36
D. -330
Answer: B
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Solve.At the start of a chemistry experiment, Sarah measured the temperature of a liquid to be 
At the end of the experiment, it had risen 
What was the liquid's temperature at the end of the experiment?
A. -37°C B. -47°C C. 37°C D. 47°C
Evaluate the expression by writing it in arithmetic form.Subtract 1.5 from 7.6.
A. 6.1 B. 8.5 C. 9.7 D. 9.1
Solve the problem.A flagpole is perpendicular to the horizontal but is on a slope that rises 10° from the horizontal. The pole casts a 43-foot shadow down the slope and angle of elevation of the sun measured from the slope is 36°. How tall is the pole? Round your answer to the nearest 0.1 foot.
A. 36.4 ft B. 33.5 ft C. 36.2 ft D. 35.4 ft
Factor out the largest possible common factor.m2(n - 8) - (n - 8)
A. (n - 8)(m2 + 1) B. (m2n - 8m2) - (n - 8) C. m2(n - 8) D. (n - 8)(m2 - 1)