Answer:
24:18
Step-by-step explanation:
Let x be the constant of proportionality...
Hence,
4x+3x=42
7x=42
x=6
Hence,
24:18 is your answer
The question you posted doesn't really show the question. Are there any words like how, when, where.... and do you have answer choices? : ) maybe then I can help?
Um, it should just be n + 1 because then it would be the next integer.
ANSWER
$18,000
EXPLANATION
Ginny has $10,000 in a savings account.
The interest is 4% simple interest.
We want to calculate Ginny's total account balance after 20 years.
To do this, we will first caluclate the interest and then we will add it to the initial balance.
To calculate Simple Interest, we use:

P = principal = $10000
R = rate = 4%
T = time = 20 years
Therefore:

Therefore, her account balance after 20 years is:
Amount = $10000 + $8000 = $18,000
Answer:
3.5m
Step-by-step explanation:
Square 7=49. Subtract 49 from 196= 147. Find the square root of 147= 12.12m.