According to the graph below where the x-axis represents the minutes and the y-axis represents the heartbeats, what is the unit rate of a human's heartbeat per minute?

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.

Where's the rest of the

now i kniw my abcs next time wont u sing with me