Solve the following system by the substitution method. check the solution.
3x+5y=47
x=y+5

With #! i’ve tried to figure it out but i can’t.

Abank gives 6.5% interest per year. what is the growth factor b in this situation?

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?