988:)))))))))))))) i hope its true
Answer:
number 9 is c.
im not really sure what 10 is
Answer:
angle D equal to 3 X + 20 + 7 x minus 3 x
=90 degree equal to x minus 3 X + 20
7 X equal to 70 X equal to 10
Pq
because they constant is the multiple of the last digit of each factor
