Answer:
10 hours, 30 minutes.
Step-by-step explanation:
Distance ÷ Speed = Time
525 ÷ 50 = 10.5
Answer:

Step-by-step explanation:

Answer:
9/14
Step-by-step explanation:
The question is not clear enough. Here is a similar question as shown in the attachment
Given the expression
-3/2 ÷ -7/3
= -3/2 ×-3/7
= (-3*-3)/(2*7)
= 9/14
Hence the equivalent result expressed as a fraction is 9/14
(9x^4-13x^3-x-7)+(7x^3-2x+1)=
9x^4-13x^3-x-7+7x^3-2x+1=
9x^4+(-13+7)x^3+(-1-2)x-7+1=
9x^4+(-6)x^3+(-3)x-6=
9x^4-6x^3-3x-6
Answer: Option <span>D.)9x^4−6x^3−3x−6</span>