Answer:
first one is simnple cross multiply and divide
12*7=4x
84=4x
x=21
2nd same process but more steps
7x=5(x+8)
7x=5x+40
7x-5x=40
2x=40
x=20
Step-by-step explanation:
This is a direct variation, since the cost and the number of articles purchases both go up.
Answer:
Step-by-step explanation:
The answer to this question will be E
Answer: $675 hope this helps I tried
