Some home computers can do a calculation in 2 x 10 ? seconds. Write this number in standard form.

Combine the information in the problem and the chart using the average balance method to solve the problem.

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years

What is r i 4.5+10r=-6.5 with work pls