It depends how much she begins with but if she doesn’t begin with any then it’d be 2.5
Answer:
x = –4
Step-by-step explanation:
x = –koef x / (2•koef x²)
Answer:
Step-by-step explanation:
To find the area of a semicircle the formula is

The square

(rectangle)
(triangle)
10 runners ran fewer than 4 km
Answer and explanation:
They are not equivalent because if we simplify the second expression, the result isn't the same:
7(y×b)+3b
= 7(yb)+3b
=7yb + 3b
Therefore 7yb+3b≠7y+7b+3y
And even though you meant
7(y+b)+3b
=7y+7b+3b
=7y+10b
7y+10b≠10y+7b