A car travels 120 miles in 3 hours (with a constant spee
travel 200 miles? hours.

50 anples cost $25. How much would 75 apples cost?

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.