Lamont purchased a sweater that was on sale for 25% off. Which expression represents the amount that Lamont paid for the sweater if x represents the original price of the sweater?

1. The energy located in the bonds of food molecules:
A. is called thermal energy.
C. causes molecular movement.
B. is a form of potential energy.
D. can be transformed to the bonds of ATP.

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.