Answer:
that is an addition sign the correct answer is B
Step-by-step explanation:
Answer:
2x-y-13=0
Step-by-step explanation:
Answer:
Infinite solutions
Step-by-step explanation:
Simplify both sides, subtract 9x, and add 21x to both sides and you will get 0 = 0 so there is infinite solutions.
Answer:
36°
Step-by-step explanation:
circle has 360°, divide that by 10 to get 36