Rock musician Donny West is paid 15% on his CD sales and tour video sales. Last year, he sold one million CDs and 550,000 videos. The CDs were sold to music stores for $5 each and the videos for $6 each. a. What was the total amount of CD sales?

b. What was the total amount of video sales?
c. What was the combined total of CD and video sales?
d. How much did Donny West receive in royalties last year?

(x, y)→(x − 8, y − 7)

step-by-step explanation:

enjoy!

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

i believe that the slope of the line is -5

step-by-step explanation: