Step-by-step explanation:
Number for Breaststroke = 50
Number for Butterfly = 25
Ratio of Breaststroke to Butterfly
= 50 : 25 = 2 : 1.
The ratio value is 2/1.
Answer:

Step-by-step explanation:

First, let's remove parentheses:

Simplify, multiply, 4 * -2x = -8x:

** Apply rule: - ( -a )= a

Now, let's regroup terms

Add 12 to both sides:

Simplify, 4 + 12= 16

Divide both sides by 8:


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Answer:
The area of the section for the picnic tables is 
Step-by-step explanation:
we know that
The area of the schoolyard is equal to the area of a rectangle plus the area of a triangle
so

The area of the triangle is equal to

Any number of -4 and past that is lower than -3. (-4, -5, -6, -7, -8, -9)