Answer:
Gianna makes $18 per hour.
Step-by-step explanation:
Given Gianna makes 90$ for 5 hours. That means she should make  $  = 18$ every hour.
 $  = 18$ every hour.
Therefore we have:
a.
HOURS                    DOLLARS
   1                                   18
   2                                  36
   3                                  54
   4                                   72
   5                                   90
   6                                   108
   7                                   126
b.
For the tabular column mark Hours on the x - axis and Dollars on the Y - axis. It can be plotted from the above table easily.
c.
If Gianna works for 8 hours she would have made 8 X 18 = 144$.
So, she will earn 144$ in 8 hours.
d.
To make 60$ she would have to work  hours = 3.33 hours.
 hours = 3.33 hours. 
 
        
             
        
        
        
Let us assume as at when they meet, the time elapsed is x hours.
Fred  3 mi/h
John  2 mi/h
Distance = speed * time
Fred = 3x
John = 2x
Houses are 4miles apart.  
So:            3x + 2x  = 4    5x = 4
x = 4/5 hour =  0.8 hour or 0.8*60 = 48 minutes
Time elapsed is 0.8 hour or 48 minutes.
        
             
        
        
        
Answer:
5 inches is <u>5</u> times as big as 1 inch
 
        
             
        
        
        
A quarter = 0.25......200 quarters = 200(0.25) = $ 50
a dime = 0.10...150 dimes = 150(0.10) = $ 15
a penny = 0.01....300 pennies = 300(0.01) = $ 3
for a total of : 50 + 15 + 3 = $ 68 
        
             
        
        
        
Using the definition of vertical angles you can set up the equation 3x+4=115, when solved you get x=37. Hope this helps!