If you are looking for the equation of the line,
Use Point Slope Form

y-4 = 3(x-1)
y-4 = 3x-3
y = 3x + 1
At a race, there are 3 rows with 15 people in each row. How many total people are there?
Numerical expression- 15 times 3
(Idk if this helped very much but it's worth a shot)
The different between n and 15 is 5 in an algebraic expression would be n-16=5
the solution would be n=21
Answer:
Question 6a, 3. 6b, -6, 6c, -3
Question 7, 3x^3-x^2-x-4-5/x-1
Question 8, x^2-x+1
Question 9a, x^2+14x=40
9b, x^2-2x-80
9c, 9x^2-3x-20
9d, 9-4x^2
10a 11021
10b 9120
10c, 9984
Step-by-step explanation:
Answer: 8.3
Step-by-step explanation: 37 divided by=12.3 then 12.3 - 4