find the echelon form of this augmented matrix written so there are 1's on the diagonal 1,-2,3,300,-1,3,-1,100,1,0,8,1400

34

step-by-step explanation:

c

step-by-step explanation:

i think because what else can be a sample of every member

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

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100