Which of the following is the same as 8.4x10²

For this case we must find an expression equivalent to:

We must run the decimal two spaces to the right, then:

If we run a space on the right we have 84, so when running two spaces on the right we have: 840

Thus, 8400 is an expression equivalent to

840

35x 3= 105

step-by-step explanation:

35+35= 70   70 + 35= 105