4. Which best describes transportation in the North? * O wagons
O telegraph
O trains
O long distance shipping of cotton

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

What expression is equivalent to log3(x+4)

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?