1 The numbers of dots in the four
triangular arrays form a sequence.
If n is the number of the term,
which rule could have been
used to determine the first four
terms in the sequence?
n + 1
A
с
n2-n
2
2
B
n² tn
2
D
nz?
n - 1
2

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Why is studying fractions important