Translate to a system of two equations, then solve.There were 420 people at a play. The admission price was $3 for adults and $1 for children. The admission receipts were $780. How many adults and how many children attended?
A. 180 adults and 240 children
B. 195 adults and 225 children
C. 240 adults and 180 children
D. 120 adults and 300 children
Answer: A
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Solve the problem.Midtown Antiques collects 4% sales tax on all sales. If total sales including tax are 
find the portion that is the tax amount.
A. $46.92 B. $1128.00 C. $35.12 D. $45.12
Find the indicated probability. Round your answer to 6 decimal places when necessary.When two balanced dice are rolled, there are 36 possible outcomes. Find the probability that either doubles are rolled or the sum of the dice is 4.
A. 
B. 
C. 
D. 
Perform the indicated operations on a calculator. Express the result with the proper accuracy and precision. Assume that all numbers are approximate.
A. 0.2618 B. 2.098 C. 0.262 D. 2.10
150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 65 and standard deviation ? = 10.Assuming there were no outliers, the lowest score on the exam was around
A. 65. B. 35. C. 0. D. 10. E. none of these