Solve the problem.A discount store had monthly sales of $86,800 and spent 22% of it on promotions. How much was spent on promotions?
A. $39,455
B. $190,960
C. $19,096
D. $394,545
Answer: C
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Solve the problem.The elasticity ? of a particular thermoplastic can be modeled approximately by the relation 
, where T is the Kelvin temperature. If the thermometer used to measure T is accurate to 1%, and if the measured temperature is 476 K, how should the elasticity be reported?
A. ? = ± 0.004 B. ? = 0.174 ± 0.004 C. ? = 0.174 ± 0.002 D. ? = 0.174
Solve the problem.Find the side length of a square with the same perimeter as a circle with radius 8 in. Use 3.14 for 
A. 6.28 in. B. 7.09 in. C. 12.56 in. D. 25.12 in.
Decide whether or not the network is traversable.
A. Not traversable B. Traversable
Factor completely, or state that the polynomial is prime.x8 - y8
A. prime B. (x6 + y6)(x3 + y3)(x3 - y3) C. (x6 + y6)(x4 + y4)(x2 + y2)(x + y)(x - y) D. (x4 + y4)(x2 + y2)(x + y)(x - y)