The long piece of the board is 100 cm and the shorter board is 20. you can solve this by dividing 120 by 6 since u need to have a piece that is 5x a piece which is a total of 6 pieces. Then multiply that number by 5 and that is your longest board.
<span>In a scientific notation, you have to put a decimal right after the first number (unless it is a zero). How many times you move the decimal from its original spot determines the answer. (FYI: In a number like 196 the decimal point is 196.000<--here)</span>
<span /><span>1.
5.8927 (moved the decimal point 4 times, so the answer is --->) 5.8927×
</span>
<span>2.
1.304×</span><span>
</span>
<span>3.
6.73×
</span>
<span>4.
1.33×
</span>
<span>5.
9.77×
</span>
<span>6.
3.84×
</span>
The answers are 1/5,2/5,3/5,and 4/5