How many nonzero elements are in the matrix below? 2
0 0 3.1
3.1 22
22 9
0
21
3.2 0 0 6
1
42 0
0 0 8
40
0 0
4 6
14
10 20
20 0
13 5
6.3
0 11
O 16
O 19
O 30

you probably already have the answer but anyways it's b. 15.0

step-by-step explanation:

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.