Answer:
a= 40
Step-by-step explanation:
you just add the other two angles , then subtract the number you get from 180 . this is so since every triangle has to equal 180 . and the squares that you see equal 90 degrees .
your answer is point D represent
Its 7 hope i helped
16, first you need to add on the four he lost to the 18 he ended with.
3x+4y=60
