Answer:
The roster method is defined as a way to show the elements of a set by listing the elements inside of brackets. An example of the roster method is to write the set of numbers from 1 to 10 as {1,2,3,4,5,6,7,8,9 and 10}. An example of the roster method is to write the seasons as {summer, fall, winter and spring}.Step-by-step explanation:
Answer:
c
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
90 - 30 = 60
60 - 45 = 15
d.15
Answer:
her time increased 2.53 seconds
Step-by-step explanation:
subtract 28.78 from 31.31 to get how much her time increased.
