Can you me with number six and seven i don't get it and i need to be explained in word for word you if you can

6.
original=100%
75% off means
100%-75%=25%
remaining is 25%
it was sold for 45
therfor
25%=45
find 100%
just multipl it by 4 since 25 times 4=100
100%=45 times 4=180
originl price=180
answer is A

7. simle interest
I=PRT
P=principal=1000
I=interest=300
T=time=5
R=rate in percent form=?

300=1000*?*5
300=5000?
divide both sides by 5000
0.06=?
aka
6%

answer is 6%

b is answer

6. A
7. B

The equation of the linear function in slope-intercept form is  

The equation of a linear function can be written in the slope intercept form as:

f(x) = mx + b,

where,

m represents the slope of the linear function

b represents the point on the y-axis where the line intercepts the y-axis. (at this point, x = 0)

we need to find the value of m and b to be able to write the equation of the linear function.

Find slope (m):

From the image attached, the red line represents the rise (3 units) while the blue line represents the run (6 units).

Slope (m) = rise/run

Substitute:

Slope (m) = 3/6

m = 1/2

Find the y-intercept (b):

From the graph, the line cuts the y-axis at y = -5.

Therefore,

b = -5

Next is to substitute m = 1/2 and b = -5 into f(x) = mx + b. Thus:

The equation of the linear function is:

Learn more about how to write the equation of a linear function here: