Write the fraction as a mixed number 31/6
20/10
15/8
13/6
pls answer my dad is gonna hit me

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

Percent increase and decrease. original number: 45 new number: 18

21 a stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. how long are the two pieces?