For the equation 3(2x - 5) = 6x + k which value of k will create an equation with infinitely many solutions?
a.) 15 b.) -5 c.) 5 d.) -15 show steps to solve this

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?

Pls if a cow has a mass of 9×10^2 kilograms, and a blue whale has a mass of 1.8×10^5 kilograms, which of these statements is true?

Solve x+3y=6 and 4x-6y=6 by elimination . show work !