Which of the following is NOT a cause of student difficulty on the broken ruler problem?
a. Inability to read fractional lengths.
b. Believing that the number appearing below the right side of an object measured on the ruler indicates its length, regardless of where the object is placed on the ruler.
c. Counting a mark above a whole number as a unit of length rather than the distance between two consecutive whole numbers.
d. Over-reliance on calculators as computational devices.
Ans: d
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Integrate the function.
dx, x < 6
A. 
+ C
B. - 
+ C
C. - 
+ C
D. 
+ C
Find the simple interest and the future value of the simple interest loan. Round to the nearest cent.Loan amount of $15,380 borrowed at an annual percentage rate of 5% for 3.4 years
A. $1376.11; $16,756.11 B. $2614.60; $17,994.60 C. $3383.60; $18,763.60 D. $2537.70; $17,917.70
Solve the system of equations by the substitution method.
A. (8, 24) B. (24, 8) C. infinite number of solutions D. no solution
Add or subtract the rational numbers. Express the sum or difference as a rational number in lowest terms.- 
+ 
A. 
B. 
C. 
D. 