Question

write as a decimal and percent 

350/100

Answer 1

first, let's simplify this a bit ok?

$\frac{350}{100} = \frac{35}{10}$

Now, as a decimal: 3.5

As percent you multiply the number by 100 % (which is 1, and you an always multiply by 1):

3.5 *100%=350 %.