Solve the formula for the specified variable.I = 
for n
A. n = IR - E + Ir
B. n = 
C. n = 
D. n = 
Answer: D
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120mcg = ? grains
A. gr500 B. 200 grains C. 2 grains D. 0.002 grains
Divide. Write the answer in lowest terms and as a whole or mixed number where possible.
÷ 
A. 
B. 
C. 1
D. 1
Solve the problem using the percent equation. Write a sentence answering the question.A banquet dinner is being organized by a club. The actual cost of the dinner is $30 per person. The members are to pay $6 to attend, with the club making up the difference. What percentage of the dinner's cost is the member to pay?
A. A member will pay 10% of the cost. B. A member will pay 15% of the cost. C. A member will pay 20% of the cost. D. A member will pay 12% of the cost.
Complete the statement so that the indicated property is illustrated. Simplify the answer, if possible.-7(3) =
A. (-1 ? 7) ? 3 = -21 B. -3 - 7 = -10 C. 7(3) = 21 D. 3(-7) = -21