You come across a large sum of money in a mattress that you find at Goodwill. You decide to keep the money and invest it in a few portfolios. You put 20% of the money into a
portfolio with a 4% expected return, 60% into a portfolio with a 5.5% expected return, and 20%
into a portfolio with a 6% expected return. What is your total expected return rate as a percent?

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.