Linda's income, in thousands of dollars, is given by the function f(x) = 40x + 10, where x is the number of years. her expenses, in thousands of dollars, each year is given by the function g(x) = 25x + 5. which function best describes the amount she is able to put into savings, h, each year, in thousands of dollars? h(x) = 65x + 15 h(x) = (40x + 10)(25x + 5) h(x) = -15x - 5 h(x) = 15x + 5

Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

The level of co2 emissions, f(x), in metric tons, from the town of fairfax x years after they started recording is shown in the table below. x 2 4 6 8 10 f(x) 26,460 29,172.15 32,162.29 35,458.93 39,093.47 select the true statement.