Answer:
Question 1: y-11x+5 I think; Question 2: I'm not sure
Step-by-step explanation:
Answer:
300%
Step-by-step explanation:
Given

Required
Find the percentage change in y when x decreased by 50%
First, convert to equation

Where k is the constant of proportionality
When x decreased by 50%



Expand

Substitute
for y



The percentage change is then calculated as:





<em>The percentage in y is 300%</em>
Answer:20 packets
Step-by-step explanation: 30,000/ 1500=20
23(3) + 3
= 72
Why do you write 2 equations?
X-intercept is 0
Y-intercept is —4