I would recommend her to use kilograms:
grams are the standard weight unit used in the majority of the countries and in science- that's why it's better than pounds.
But kilograms are better than grams, since a watermelon weights around 2 kg, so it's easier to remember than 2000 grams.
Hi! Since it is asking for the total, you must add!
145+217=?
1)a parallelogram is a quadrilateral with opposite sides being parallel so the lines AB must equal CD or otherwise it wouldn't be a parallelogram
2)for a quadrilateral to be proven to be a parallelogram the consecutive angles has to be supplementary which means they add up to 180 or for example you could slice the parallelogram in half down the middle you could piece the two consecutive angles together to make 180 degrees
You can't really determine the amount of computers from this question, they're obviously not going to have one computer for everyone so half third, or even a fourth of the school population