Answer:
The average mass of a group of children is 50 kilograms. Todd, who has a mass of 62 kilograms, then joins the group. This raises the average mass of the group to 52 kilograms. How many children were in the original group
Step-by-step explanation:
Answer is C hope this helps
Answer: Amount of sales s = $6240 is the salary at ABC company is greater than at XYZ company.
Step-by-step explanation:
Since we have given that
Annual salary of ABC company = $45000
Annual salary of XYZ company = $38000
Rate of commission = 2%
Amount of salary after commission at XYZ company would be

So, Difference between is given by

Hence, Amount of sales s = $6240 is the salary at ABC company is greater than at XYZ company.
Answer:
y =
x - 8
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = -
x - 1 ← is in slope- intercept form
with slope m = - 
Given a line with slope m then the slope of a line perpendicular to it is
= -
= -
= 
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Here m =
and (a, b) = (9, - 2), thus
y - (- 2) =
(x - 9), that is
y + 2 =
(x - 9) ← in point- slope form
Distribute right side and rearrange
y + 2 =
x - 6 ( subtract 2 from both sides )
y =
x - 8 ← in slope- intercept form