In a triangle, the total angle is 180 degrees. A straight line is always 180 degrees. With this in mind, the following can be obtained:

These are simultaneous equations.

Answer:
2•2²×100+5.
Step-by-step explanation:
Answer: 3.5% with a 3.50 Tip
Reason: 25.00 - 21.50 = 3.50
Answer:
12 shoes
Step-by-step explanation:
Because 6 times 2 is 12 and 4 times 3 is 12. And that is the lowest common number that they share.