257760 envelopes the machine seal in 1 day<span />
Answer:
24
Step-by-step explanation:
7x4
If you put 0 in the place of x or y, which every one you choose, it will cancel it or and you can just divide the number next to it by the answer (-20, 20). Take it one step at a time, don't try to do both at the same time.
It's C because 1 and 5 are the same angles so they are parallel.