What is this function’s input if its output is 11?

f(x) = 2x + 5

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5