Answer:
Let the Dulcina's collection be 'x'
Let the Tremaine collection be 'x-39'
x + x - 39 =129
2x = 129 +39
2x = 168
x = 168/2
x = 84
Dulcina's collection = x = 84
Tremaine's collection = x - 39 = 84 - 39 = 45
Answer:

Step-by-step explanation:
In this question, one is asked to multiply a fraction by a whole number, first model the question.

In a situation like this, one multiplies the whole number by the numerator (number) over the fraction.

Simplify,

A common error that people make is that they will multiply both the numerator and denominator by the whole number, this is the same as multiplying the answer by (1), thus it is incorrect.

The given angles 3 and 4 shares a common arm, therefore the angles are known as Adjacant Angles
(3x+2)-(2x-2)
3x+2-2x-2
3x-2x=x
2-2+0
X
Claire can mix 4 cups of blue paint with 2 gallons of white paint.
(More than?) 2 cups of blue paint with 1 gallon of white paint or use less white paint with Claire recipe.
(Less than?) 2 cups of blue paint with 1 gallon of with white paint or use more white paint with Claire recipe. Sorry I was a bit confused with a bit but this should be right