Hi it is 57 is a becase use a protractor
Answer: julie spent 4 more dollars than mindy
Step-by-step explanation: julie spent 36 dollars in the dress while mindy spent 32 dollars
Answer:

Step-by-step explanation:
Given



Required
Find y when x = 30
Being an inverse variation, we have:

Convert the variation to an equation

First, we solve for k
Make k the subject to solve for k


So, the value of k is:


To solve for y when x = 30
Substitute 30 for x and 42 for k in 

Make y the subject


Answer:
y=17.50x
Step-by-step explanation:
In this case Y is his total income for the number of hours he works. X is the number of hours he works. 17.50 is his hourly income