At the time they took office, ronald reagan and james buchanan were the oldest us presidents. reagan was 4 years older than buchanan. the sum of their ages was 134. determine reagan's age and buchanan's age at the time each man took office

Ronald Regan was 69 when he took office which means James was 65. You can check this awnser by adding 69 + 65 = 134 Feel free to Dm me if you have any questions

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.