Which of the following is NOT an elementary row operation of a matrix?
A. Interchange two rows
B. Multiply each entry in a row by a nonzero constant k
C. Replace the j-th row with the sum of itself and a nonzero constant multiple of the i-th
row
D. None of them

The jones farm has 24 cows that each produce 52 quarts of milk a day. how many quarts are produced each day altogether

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.