Answer:
D. 27x^3y^3
Step-by-step explanation:
The exponent at the end that is above and outside the parenthesis of the whole thing, needs to be passed out to each piece inside the parenthesis. See image. 3^3 is 27 and a power to a power, you multiply the exponents. See image.
Answer:Ratio in miles per hour is 12 miles per hour.
Distance travelled is 60miles
Speed=distance/time taken
24/2=12miles per hour
Therefore, distance travelled in 5 hours is 12*5=60miles
