Frank is designing a new walkway for his house. He is using concrete stones to make the walkway. He knows he will need 50 pounds of sand for every 10 concrete stones he will lay in the walkway. Which equation describes the relationship between the amount of sand in pounds, s, and the number of concrete stones, c? A. s=10c+50
B. c=5s
C. c=10s+50
D. s=5c

a

Step-by-stepe

I already did it

the answer is d. (1.2, -4.7) on edgn

hope this !

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!