Answer:
Angle b is 90 degrees. If angle a is 42 degrees and it is a right triangle then angle b is 90 degrees
Answer: 1.17
Step-by-step explanation: multiply 9 x 0.13
The right answer is Option B.
Step-by-step explanation:
Let,
Age of Nora = x
Age of Damon = y
According to given statement;
x = 3y Eqn 1
In 8 years;
x+8 = 2(y+8) Eqn 2
Putting value of x from Eqn 1 in Eqn 2

Damon is now 8 years old.
In 8 years, he will be = 8+8 = 16 years old
Damon will be 16 years old in 8 years.
The right answer is Option B.
Keywords: linear equation, substitution method
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Answer: I believe the scale is balanced.
Step-by-step explanation: I stated that because since the other side of the scale contained 12 marbles that were 1 pound each that would be 12 pounds and then since 4+8=12 12 pounds of marbles were also put on the other side.