On a bike trip across the united states rodney notes that he covers about 190 miles every 4 days. if he continues at this rate use a ratio table to determine about how many miles he could bike in 6 days

4-190 190 divided by 4 is 47.5, so Rodney travels 47.5 miles per day. if Rodney travel 190 miles in 4 days, at 47.5 miles to 190 to find out how far he would travel in 5 days. 190+47.5= 237.5 day #4-190 miles day #5-237.5 miles day #6-285 miles

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.