C-53.62 times however many she bought.
so c-(53.62x)
because you are taking how much money she spent and subracting it from how much she had
C = 0.3*-2.7 = -0.81
Hope it helps:)
first
second
and fifth are true
Basically the square root of -1 is i. From that you should be able to deduce the answers.
We can find this using the formula for arc length (where is the radius of the circle and is the central angle in radians):
In our problem, we are given . This means that:
The measure of the angle is 1.5.