Answer:
traingular Number Sequence: 1, 3, 6, 10, 15, 21, 28, 36, 45, .etc.
Answer:
10% decrease
Step-by-step explanation:
The formula for percent change is:

Therefore, for this example:

The negative value indicates that the change was a decrease. Therefore, there was a 10% decrease.
Answer:
3.75
Step-by-step explanation:
3/4 times 5 =3 3/4