Find the solution to the system of equations represented by the matrix shown below.
3
-1
7.
53
7
1
61
9
1
67

0.038

step-by-step explanation:

the answer would be  

a.

3: 1

step-by-step explanation:

amount of apples bought =$ 2.6

amount of peaches bought =$ 1.475

amount given by you to cashier= $ 20

amount received by me= amount given by you to cashier -   [amount of apples bought +amount of peaches bought]

                                        = 20   - [1.475 + 2.6]

                                        = 20 -   [ 4.075]

                                        =   $15.925

so, change received by me = $15.925