A hypertonic solution (pronounced HÄ«-per-TAWN-ik) is a solution with a higher concentration of solute (dissolved substance) than some other, specified solution (and which therefore has a higher osmotic pressure than the other solution). The solution with the lower concentration is then termed hypotonic.
North Dakotaâs average retirement age is 64, up from 63 in 2015. We found that 9% of the stateâs residents are still working at age 80. Thatâs higher than the national labor force participation rate for people that age (6%).
Social Security retirement age. To help improve Social Security's finances, Congress decided that the retirement age should be raised to 67. This is phased in gradually, starting with retirees who were born in 1955. For retirees born in 1954 or earlier, full or normal retirement age is 66 years of age.