A cell phone company

charges a $20 fee every

month and $0.01 for ten

minutes spent talking on

the phone. Write an

equation to model the cost

of a monthly cell phone bill

for the linear function.

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.

Xis equal to three