Which is a square matrix? 2.
3
-8
1
-5 19
0
-3
5.6
7.8
6
78
2
3
-8 0
-5 19
0
0
5
8
6
0
0 0
-6 -18
1
-4
0
3.5
0
-20
7
8
4
-0.4 16 18.5

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart

answer: two angles are called supplementary if they add up to 180°. example: the two angles (140° and 40°) are supplementary because they add up to 180°.

step-by-step explanation:

i think the answer is 90 hope this