Question

Can anyone help answer this thanks

Answer 1

Write the first number 25.
Add a decimal point after it: 25
Now count the number of digits after 25 There are few digits after 25.

Answer 2

A) is 2.5 x 10^4
B) is 8.1 x 10^3
C) is 90.6 x 10^6
D) is 10.34 x 10^7
Sorry if I’m wrong, x