: Cho A =

2 1 0
2 3 −4
!
, B =


1 0 −3
−2 1 4
0 −2 7

 , C =


−1 −2
0 9
2 0

 .
Tính
a) −2A + 3C
T
.
b) AB.

n/a

Step-by-step explanation:

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$450.00 for 6 weeks

or

$300

step-by-step explanation:

$200.00 for first week $50.00 x5 equals $250 plus $200 equals $450.00 for six weeks.

$200 for first week

$200 x 0.10 = $20

$20 x 5 = $100

$200 + $100 = $300

i think the answer is b.

step-by-step explanation:

not 100% sure though.