In a 750g bag of mixed nuts, the ratio of peanuts to cashews to almonds is 8: 4: 3 by mass. Determine the masses (amounts) of the peanuts, cashews and almonds in that 750g bag. [please show your work]

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.