Number 4 is C... 21
To complete the question, make the equation 5x + 15 + 3x - 3 = 180 because of supplementery angles.
Just solve for x to get 21.
Number 5 is C... 120
To complete this question, sub 21 in for X in the equation 3x - 3 to get 60. Subtract 60 from 180 to get 120.
Answer: It would take 7 hours.
Step-by-step explanation:
715/11 = 65
65 miles per hour
455/65 = 7
70
Explanation:Sorry if im wrong !
