Find BC if AC=15 ,BD = 16 , And AD=19

Hope that will help you

a. 27.6

b. 978.3

c. 42.9

d. 9.0.

Step-by-step explanation:

If the hundredth's digit is 5 or greater you round up the tenth's digit.

For example 27.564  There is a 6 in the hundredth's place so we add 1 to the 5 in the tenth's place.

For example Option d the hundredth's  is 9 so you add 1 to the 9 in the tenth's place. In this case  8.9  becomes 9.0.