Indicate what must be done to each side of the equation in order to isolate the variable.-x = 0.28
A. Multiply by 
B. Divide by 
C. Divide by 0.28
D. Divide by -1
Answer: D
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Convert to an exponential equation.ln 3a = 1.3
A. e1.3 = 3a B. 1.3e = 3a C. e3 = 1.3a D. ea = 1.33
Solve the problem. Express your answer in scientific notation, and round to one decimal place. In a state with a population of 7,000,000 people, the average citizen spends $6,000 on housing each year. What is the total spent on housing for the state?
A. $42 × 1010 B. $4.2 × 1010 C. $42 × 1011 D. $4.2 × 109
Give an appropriate answer.The following table shows the number of rodeos in a certain state from 2008 through 2012. 
Draw a line graph that makes the decrease in numbers look small.
What will be an ideal response?
Solve the variation problem.The distance it takes to stop a car varies directly as the square of the speed of the car. If it takes 112 feet for a car traveling at 40 miles per hour to stop, what distance is required for a speed of 
per hour?
A. 194.37 feet B. 182.41 feet C. 182.07 feet D. 156.06 feet