Suppose your class is planning a trip to a museum for 40 students. The cost of admission is $7 per person. The cost of renting a bus for the day is $180. Write an equation that represents the relationship between the admission, the bus rental, and the total cost.

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.