Solve.A store sold 39 lamps on Monday, 17 lamps on Tuesday, and 25 lamps on Wednesday. How many lamps did the store sell in all?
A. 82 lamps
B. 80 lamps
C. 81 lamps
D. 91 lamps
Answer: C
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Express the relationship between a small change in x and the corresponding change in y in the form 
.f(x) = 3 cot 
A. dy = 3x3 csc2 
dx
B. dy = -3x3 csc 
dx
C. dy = -3x4 csc2 
dx
D. dy = -3x3 csc2 
dx
Simplify the expression. Assume all variables represent positive real numbers.2
+ 14
A. 13
B. 16
C. -12
D. -17
Find fractional notation for the ratio. You need not simplify.At an advertising agency that employs 282 people, 79 employees receive 3 weeks of paid vacation each year. Find the ratio of those who receive 3 weeks of paid vacation to those whose paid vacation is not 3 weeks.
A. 
B. 
C. 
D. 
Add the proper constant to each binomial so that the resulting trinomial is a perfect square trinomial. Then factor the trinomial.x2 - 
x + _______
A. x2 - 
x + 
= 
2
B. x2 - 
x + 
= 
2
C. x2 - 
x + 
= 
2
D. x2 - 
x + 
= 
2