Need math question asap, double 12 points!

The element is the entry in the 1st row and 3rd column of the matrix, which, in this case, is 7.

Edit: Got my rows/columns mixed up! Row 1, Column 3 is actually -1, as the original poster pointed out.

The row is the first number in a13. Rows go across. So you are in the top row.

The 3 or second number is the column. Columns go up and down.

Row 1 column 3 is the - 1.

The answer is C.

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

mark brainliest!