Answer:






Step-by-step explanation:
To add or subtract you need to make the denominator the same. To do this you need to find the least common multiple.
Answer: D represents the price of a sandwich and a smoothie
Answer:
It is an octogan and it isn't regular, you are correct.
Step-by-step explanation:
Normal octagons look like a stop sign. This one looks like a star.
X=k*Y
K*Y=X
K=X/Y
K=20/5
K=4
For Y=3/2
X=k*3/2
X=4*3/2
X=6