F=(9.0•10^9 n•m^2/c^2)(3.2•10^-9c)(9.6•10^-9c)/(.32m)^2 in scientific notation

m^(- 5) = 1/35 → you know that: x^(- a) = 1/x^(+ a) = 1/x^a 

1/m^5 = 1/35 → you take the inverse 

m^5 = 35 

[m^5]^(1/5) = 35^(1/5) → recall: (x^a)^b = x^(ab) 

m^[5 * (1/5)] = 35^(1/5) 

m^[1)] = 35^(1/5) 

m = 35^(1/5) 

The scientific notation is a number between 1 and 9 with few numbers after coma (point) completed by a power 10. 

= [1.4 * 10^(3)] * [2.5 * 10^(- 6)] → you remove the brackets 

= 1.4 * 10^(3) * 2.5 * 10^(- 6) → you order 

= 1.4 * 2.5 * 10^(3) * 10^(- 6) → you make the multiplication 

= 3.5 * 10^(3) * 10^(- 6) → recall: (x^a) * (x^b) = x^(a + b) 

= 3.5 * 10^(3 - 6) 

= 3.5 * 10^(- 3) ← answer C

yes, he could trvel 65 miles in 3 hours

no, he could not travel 240 miles in 4 hours

yes, he could travel 330 miles in 6 hours

no, he could not travel 504 miles in 9 hours

Step-by-step explanation:

take 55 and multiply it by the number of hours given, if the number of miles is equal to or below the product than yes he could travel the distance if it is above the product than he could not travel that distance.