Answer:
47+82 = x
129 = x
hope it helps
Step-by-step explanation:
The exterior angle is equal to the sum of the opposite interior angles
D
a=-4
b=2
c=7
so therefore a*b*c=-4*2*7
Step-by-step explanation:first you would take out the r and then figure out what number goes into both 10and 60 and that number is 5