Answer:
First term (a) =8
Common difference (d)= t2-t1
=12-8
=4
Now, sum of first 31th term (tn31) =n/2{2a+(n-1)d}
= 31/2{2×8+(31-1)4}
=31/2{16+(30×4)
=31/2(16+120)
=31/2×126
=31×63
Step-by-step explanation:
Similarly use 19 as (n) for the 19th term
Answer:
B
Step-by-step explanation:
Out of the 4 options, we only need 1. Therefore, the probability is 
Answer:
x/12+2
Step-by-step explanation:
the answer to the question
Enter them into a calculator (most significant digit first), pressing the "+" key between them and the "=" key after the last one.
64*2 is 128
1/2 of a cup of chocolate powder is 64g
laura added 4/6 of a cup
laura went over by 1/3 of a cup
