Solve.The sum of a number and 81 times its reciprocal is -18. Find the number.
A. 72
B. -9
C. 9
D. -90
Answer: B
Mathematics
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Rewrite the fraction in simplest form.
A. 
B. 
C. 
D. 
Mathematics
Factor out the negative GCF from the polynomial. If the GCF is 1, factor out -1.-16 + 16x - 4x2
A. -4(4 + 4x + x2) B. -4x(4 - 4+ x) C. -4(4 + 4x - x2) D. -4(4 - 4x + x2)
Mathematics
Divide.
A. 24 B. 5k C. 24k2 D. 5k2
Mathematics
Solve the problem.An appliance store had monthly sales of $112,600 and spent 4% of it on advertising. How much was spent on advertising?
A. $45,040 B. $281,500 C. $2,815,000 D. $4504
Mathematics