How does the value of 874.12 change if the decimal point is moved two places to the left?

A. It is twice as large
B. It increases by the power of 100
C. It decreases by the power of 2
D. It decreases by the power of 100

C

Step-by-step explanation:

When you move the decimal either to the right or the left, you change the value. To divide any number by 10, move the decimal point one place to the left. For example:  

0.7

7

70

700

7,000

So, for any decimal, when you move the decimal point one place to the right, you multiply that number by 10.

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.