A farmer owns a triangular field with a perimeter of 7a + 5b – 4. Which of the following could be side lengths of the field? A. 6a, a + 2b, and 3b – 4
B. 2a + 5, 4b + 1, and 3 – 7
C. 3a + 5, a + 5b, and 3a – 1
D. 4a + 6, a –10, and 3a + 5b

Its B i used a Calculator ;)

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

nada

step-by-step explanation: