How can a liquid be drawn into a pipette safely?
by squeezing a bulb attached to the wide end of the pipette
by gently sucking the wide end of the pipette until the liquid rises up
by using a beaker to pour the liquid into the pipette
by using an eyedropper to drip the liquid into the pipette

By squeezing a bulb attached to the wide end of the pipette  

Explanation:

You squeeze the bulb and place it on the wide end of the pipet. Then you place the tip of the pipet in the solution and release your grip to pull it into the pipet.

B is wrong, unless you want to accidentally get a mouthful of the sulfuric acid or cyanide you are pipetting.

C and D are wrong. Even the wide end of a pipette is too narrow to fill with either a beaker or an eyedropper.

multiplying and dividing the two decimals and the eqations by the same number of the overalls