Mr. walker invested $65,100 in two banks, one paying 4.5% and the other 6%. if he gets $231 more on the 6% investment than that on the 4.5% investment, find the total annual income from the banks.

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.