Describe the patterns below in words: a) 1, 4, 9, 16, b) 1, 2, 4, 7,

A)Add 3 and the continue to add 2 more to three each time to get the next number
B)add 1 and add one to the number one each time to get the the next number

A)1+3=4+5=9+7=16+9=25
The pattern is that you have to add odd numbers so you can keep getting the answers(Example:1st-+3,2nd-+5,3rd-+7,4th-+9)

b)1+1=2+2=4+3=7+4=11
The pattern is that you have to add #'s 1 to so on so you can keep getting the answers (Example:1st-+1,2nd-+2,3rd-+3,4th-+4,& etc.)

The amount used= 13.04- 1.9 = 11.14