What is 1+1 and 2x2 what is is is is is is

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion