Answer:
Your answer is B
That is the correct answer
Answer:

Step-by-step explanation:
Given that the change is -13/10 in 10 seconds
Here, you can write this statement as;
10s = -13/10
30s=?----------------perform cross-multiplication
(-13/10 * 30 ) /10

Answer:
There will be 104 customers a day, after advertising campaign
Step-by-step explanation:
Current number of customers in a day in shop = 80
After advertising campaign, the customers will increase = 30%
So, new customers will be:
We can find new customers by adding new 30% customers to the current 80 customers.
First find 30% of 80

Now, add 24 to current 80 customers.
Number of customers = 80+24 = 104
So, there will be 104 customers a day, after advertising campaign
Answer:
20
Step-by-step explanation:
f(x) = 30
30 = 1.8x -5.4
35.4 = 1.8x
x = 35.4/1.8
x = 19.666
Answer:
2.195
Step-by-step explanation:
Use a calculator