Answer:
Step-by-step explanation:
Answer:
one trillion
Step-by-step explanation:
Answer:
-7
Step-by-step explanation:
let the first term be a
thus, a=56
common difference d= U2-U1 = 49-56= -7
Answer:
There is usually a word that represent the operation for example difference to subtract
Step-by-step explanation:
Answer:
yes
Step-by-step explanation: