9: if 19 erasers cost $3, what is the equation that can determine the cost of 45 erasers

Step-by-step explanation:

where, y is the total cost of the erasers,

m is the numbers of erasers,

x is the cost of each erasers.

Given:-

by putting these value in the above equation,

i.e.

we get,

Now for 45 erasers substitute the value of

so, we get

cost of 45 erasers are $7.065

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.

no one knows lol

step-by-step explanation: