Graph on a cordinate plane by hand or a graphing device 2x-3y=18 3 -X -x + ²y = 8 zy If there is one solution (x,y) Or if there is no solution curite no Solution or infinitely many

A bacteria sample initially has 300 organisms. After 2 hours there are 500. Write an equation that will express the number present after t hours.

I understand that so much better then the last person that helped. could you do the same thing but swap the equation out for -2x=8y instead of x=5

A student is asked to do the following: “Choose any number.  Subtract ten times the original number and subtract the square of the original number from 375.  Find the greatest result and the value of the original number that gives the greatest result.”  Write an equation that represents these instructions and determine the required values.