73,980=70,000+3,000+800+90+0
100=100+00+0
Answer:
Step-by-step explanation:
I suppose the expression is this 
We can factor out this expression ( Remember, find two numbers that the sum is 9 and the product is 8. The numbers are 8 and 1)

The last one- its the only one that applies to the 4* rule.
The measure of a right angle is 90 degrees
Answer:
294
Step-by-step explanation: