Answer:
14 dollars
Step-by-step explanation:
14÷2= 7
7+5=12
The second i think you did good
The answer for the question is D!!
Answer:
x = ± 
Step-by-step explanation:
Given
+
= 1
Multiply through by a²b² to clear the fractions
b²x² + a²y² = a²b² ( subtract a²y² from both sides )
b²x² = a²b² - a²y² ( divide both sides by b² )
x² =
( take the square root of both sides )
x = ± 
Answer:
x=50
Step-by-step explanation:
This is a vertical angle, so the angle on top and the bottom are equal
[2(x+10)]=3x-30
2(x+10)=3x-30
2x+20=3x-30
50=x