Answer:
B
Step-by-step explanation:
First a linear function has no variables to a power other than 1
That means we can eliminate answers A ,C D and E
Looking at B
y + 7 = 5x
Subtract 7 from each side
y+7-7 = 5x -7
y = 5x-7
This is in the form of a line (y=mx+b)
This is linear
Part A: Equation 1: 20x +120
Equation 2: 25x +80
( I think this is the answer)
Part B:
Answer:
a stationary sells 8pencil for the cost price of 10pencil find his gain percent
Answer:
k=16
Step-by-step explanation:
To solve this, we can isolate k.
40+k=56.
We can do this by subracting 40 from both sides.
40+k-40=k
56-40=16
k=16
Answer:
The first step when factoring any polynomial is to factor out the GCF. The GCF is the greatest common factor for all the terms of the polynomial. By factoring out the GCF first, the coefficients and constant term of the polynomial will be reduced.