Determine whether the given number is a solution of the equation.7n = 64 - n; 8
A. Yes
B. No
Answer: A
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Convert the given unit of measure to the measure shown.76 milliliters to liters
A. 0.076 liter B. 0.76 liter C. 76,000 liters D. 7600 liter
Plot the point.(-2, 6)
A. 
B. 
C. 
D. 
Perform the division.
A. 4x2 + 4 B. 4x2 + 5x + 4 C. x2 - 5x - 4 D. x2 + 5x + 4
Write a system of linear equations in three variables, and then use matrices to solve the system.There were approximately 100,000 vehicles sold at a particular dealership last year. The dealer tracks sales by age group for marketing purposes. The percentage of 36- to 59-year-old buyers and the percentage of buyers 60 and older combined exceeds the percentage of buyers 35 and younger by 38%. If the percentage of buyers in the oldest group is doubled, it is 18% less than the percentage of users in the middle group. Find the percentage of buyers in each of the three age groups.
A. 31% 35 and younger; 52% 36-59 year olds; 17% 60 and older B. 33% 35 and younger; 49% 36-59 year olds; 18% 60 and older C. 17% 35 and younger; 52% 36-59 year olds; 31% 60 and older D. 25% 35 and younger; 54% 36-59 year olds; 21% 60 and older