Solve.Raymond's job pays $30 per hour for the first forty hours and $45 per hour for each hour in the week worked above the 40 hours. If he earned $1830 this week, how many overtime hours did he work?
A. 54 hours
B. 630 hours
C. 14 hours
D. 21 hours
Answer: C
Mathematics
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Mathematics
Using the horizontal-line test, determine whether the function is one-to-one.
A. one-to-one B. not one-to-one
Mathematics
Factor the difference of cubes.x3 - 343
A. (x + 7)(x2 - 7x + 49) B. (x - 7)(x2 + 7x + 49) C. (x - 7)3 D. Prime
Mathematics
Provide an appropriate response.Indicate whether the following statement is true or false. If every element of a 
matrix is multiplied by -6, the determinant of the new matrix is -6 times the determinant of the original matrix.
A. True B. False
Mathematics