Answer:
Read the explanation!
Step-by-step explanation:
<em>Let the "certain number" be </em>
<em>. </em>
(
is a symbol for multiplication).
<em>Create a few equations and expressions:</em>
The sum of 12 and a certain number: 
The product of 3 and the number: 
The sum of 12 and a certain number is equal to the product of 3 and the number:
= 
Solve!
12=3x-x
12=2x
x=6
Answer:
A) 3
Step-by-step explanation:
Slope defines the rate of a change in a linear equation. As the function is written in slope-intercept form, mx + b, in which m is the slope and b is the y-intercept, 3 is your slope.
<span>Interest = Principle * rate * time
I = PRT
</span><span>P = 1000
R = 2.5% -- change to a decimal = .025
T = 3
</span>
<span>
now we sub
I = PRT
I = (1000)(.025)(3)
I = 75
so at the end of 3 years, there will be : 1000 + 75 = $ 1075 in the account</span>
-6<x≤8 would be the inequality