Answer:
There are 120 1st graders at Sierra Elementary School this year
Step-by-step explanation:
Let n represent the total number of 1st graders at Sierra Elementary School
Since 45% of all 1st graders at Sierra Elementary School are female students and this year there are 54 female 1st graders, 45% of n is equal to 54
→ n( ) = 54
) = 54
→ 45n = 5400
→ n = 120
 
        
                    
             
        
        
        
Answer:
19
Step-by-step explanation:
If Catriona has 16 more stickers than Peter than the only thing you have to do is subtract and find the difference
 
        
             
        
        
        
Slope-intercept form:
y = mx + b
"m" is the slope, "b" is the y-intercept (the y value when x = 0, or (0,y))

Rise is the number of units you go up(+) or down(-)
Run is the number of units you go to the right
y = -2x
This has a y-intercept of 0, so the line intersects the y-axis/goes through the origin at (0,0)
The slope is -2 or  , so from each point, you go down 2 units, and to the right 1 unit.
, so from each point, you go down 2 units, and to the right 1 unit.
 
        
             
        
        
        
Step-by-step explanation:
the price of a piece of cloth and the length of the cloth