Answer:

Step-by-step explanation:
Given
Represent the weight of the Jar with J and the sugar with S
Initially, we have:

After 2/3 of sugar is removed we have:

Required
Determine the weight of the jar
--- (1)
--- (2)
Simplify (2)

Take LCM


Make S the subject in (1)


Substitute 850g - J for S in 

Multiply through by 3


Collect Like Terms


Make J the subject


<em>The jar weighs 370g</em>
Answer:

Step-by-step explanation:
The salary per year is the combination of the $42000 per year (constant) plus the 2% rise per year. So the ecuation is:
Firt year 
Second year 
Generalizing:

A nanometer (nm) is 10⁻⁹ m.
Therefore
10⁶ x 1 nm = 10⁶(10⁻⁹ m) = 10⁻³ m
By definition,
10⁻³ m = 1 mm (millimeter)
Answer: 1 millimeter
Compose the result function for 400 by replacing the function designators with the actual functions 400