You have a $90 gift card for a coffee shop. each day you use the card to get a coffee for $4.20. what is the value of the card after buying 8 coffees ?

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?

21 a stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. how long are the two pieces?