Answer:
20>4
Step-by-step explanation:
12-3 forget about the x 12-3=9 . 9+11=20
(17-9)=8 . 8-4 =4
so your answer is correct
Step-by-step explanation:
3
hope it helps u.......
Answer:
Step-by-step explanation:

Combine like terms. 1/4 and 7/8 are like terms and LCD of 4 and 8 is 8
9/10y and -3/5y are like terms and LCD of 10 , 5 is 10

The answer is 50x-35.hope this helps.if it does please mark brainliest
Answer: 7^8
Explanation: just add the exponent if you are multiplying two things with the same base