1) Write the following as an algebraic expression using x as the variable: Twelve less than six times a number A. 6x – 12 [(Six times a number means 6x, and twelve less mean -12)] B. –6x C. –12(6x) D. 12 – 6x
2) Write the following as an algebraic expression using x as the variable: The sum of a number and -8 A. -8 + x [(let x be the variable number, therefore sum of variable (x) and (-8) would be x-8 or -8 + x)] B. -8 - x C. x(-8) D. -8x
3) Write the following as an algebraic expression using x as the variable: Triple a number subtracted from the number A. x - 3x [(let x be the unknown number, and triple that number would be 3x. Triple a number (3x) has to be subtracted from the number, which is x,…show more content… The class average D. The grade earned
25) Since money has the ability to earn interest, its value increases with time. What affects the future value of an investment more, the interest rate or the time the investment is held? A. The interest rate has a larger impact on the future value of the investment. B. The length of time has more of an impact on the future value of the investment. C. It depends on the interest rate and the time the investment is held. D. Both interest and length of time have the same impact on the future value of the investment
26) What happens to the future value of money when the inflation rate exceeds the interest rate? A. Increases B. Decreases C. Not enough information D. Stays the same
27) What is the principal balance if the principal plus interest at the end of 1.5 years is $3,360 at an annual interest rate of 8%? A. $2,000 B. $2,800 C. $3,000 D. $2,200
28) How is a frequency distribution converted to a relative frequency distribution? A. Find the difference between consecutive lower class limits. B. Divide the lower limit of the first class by the class interval C. Multiply the class frequency by 100 D. Divide the class frequency by the total number of observations
29) How is the class midpoint calculated? A. Divide the class interval in half and add the result to the lower limit. B. Count the number of observations in the class. C. Divide the class
