5. A book of length 20 cm and breadth 5 cm is kept on a table, its area is (a) 50 cm
(b) 100 cm
(c) 150 cm
(d) 200 cm​

area=length×width

20×5

=100cm

answer: 1,380

step-by-step explanation:

1: you turn %15 into a decimal by moving the decimal point two places to the left.

2: and then you multiply .15 by 1,200 , which will get you 180.00

3: from there you will add 180 to 1,200

4: which will get you 1,380

hope it *im kind of slow so idk if my answer is right*