Answer:

Step-by-step explanation:
The magnitude of 3D vector
can be given by the following:

Plugging in given values, we have:
.
45 = 90% * x
45 = .90x
45/.90 = x
x = 50
45 is 90% of 50
Divide 10 by 25, which would get you 4. Move the decimal over two to the left, because you wanted a percentage.
Jenny gave away 40% of the roses.
Answer:
$356.78
Step-by-step explanation:
$178.39 * 2