How can you find x and y in a problem
ex:
if a bag of pretzels cost x dollars and a drink cost y dollars, what expression could you use
to write how much you spend in all

Ax + By

Step-by-step explanation:

let the number of bags of pretzels bought be A

let the number of drinks be B.

therefore the equation for the total cost C,becomes:

C = Ax + By

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

the f

last graph i believe

step-by-step explanation:

worked it out i believe