The Answer is 21 because 7 and 3 can go in it as well
Answer:
3x=78+(x-2)
Step-by-step explanation:
The exterior angle is equal to the sum of the opposite interior angles.
3x=78+(x-2)
Answer:
16
Step-by-step explanation:
7x-5+4x-7+x=180
11x-12+x= 180
12x-12=180
+12 = +12
12x = 192
/ 12 / 12
= 16
Answer:
3 miles per min
Step-by-step explanation:
3 miles x 15 (min) = 45 mph