Answer:

Step-by-step explanation:
Express as product of prime factors.


The greatest common factor is the product of the least powers of the common factors.
The GCF is

45% of what number is 27
0.45x = 27
x = 27 / 0.45
x = 60 <== 45% of 60 = 27
Y^-5
x^-5
because you have to put together all the x and then put all the y's together
If he goes 45 miles EACH hour then to solve multiply 45 by 6
45 x 6 = 270 miles