Answer:
20
Step-by-step explanation:
420-400=20
Answer:
Step-by-step explanation:
I would say the answer is 6
6 + 6 than times by two is 24
Answer:
Step-by-step explanation:
common difference d=3-1=2
first term a=1
an=a+(n-1)d
2n-1=1+(l-1)2
2n-1=1+2l-2
2n-1=2l-1
l=n
(i used l for number of terms)
number of terms=n
Answer:
literacy rate
Step-by-step explanation:
reasearchers know hot to read and write