Answer:

Thus, the ratio is:
a:b = 1:4
Step-by-step explanation:
Given the expression



Divide both sides by 2


Divide both sides by b

Thus, the ratio is:
a:b = 1:4
Answer:
At most 38 text messages.
Step-by-step explanation:
Let x represent number of text message you send or receive.
We have been given that the cell phone plan charges $.13 for each text message you send or receive. So amount charged for sending or receiving x text messages would be
.
We are also told that your cell phone plan cost $39.99 per month, so total cost of monthly bill would be
.
Since you can spend at most $45, so total cost of x messages should be less than or equal to 45 as:





Therefore, you can send or receive at most 38 text messages.
The geometric mean of x and y: 
The geometric mean of 4 and 25:

Answer C. 10
Answer:
top right.
Step-by-step explanation:
Answer:
The rate is $18.15 per mile.
Step-by-step explanation:
Add $18 + $0.15 and it equals $18.15.