Formula to find circumference is ;

Since the given circumference is 30 pi then,
30 pi = 2 pi radius.
30 = 2 radius
radius = 30/2
radius = 15
The radius is 15 for a circle tha has circumference of 30 pi
B. because the negative numbers are the smallest so they have to come first and -14.6 is smaller than -1.295. a.07 is smaller than 24.6 and 159 is the largest number listed.

Geometry Rule: SOH CAH TOA.
Sine = opposite over hypotenuse
Cosine = adjacent over hypotenuse
Tangent = opposite over hypotenuse
I won't solve all of these for you because I find that solving it on your own is an important step in learning to actually understand how this works.
No nothing is even it is supposed to have 2 pairs of congruent and parallel sides
Answer:
A. -4
Step-by-step explanation:
For solving for x intercepts analytically. You can set the the y in the equation to 0. So, 2x-3(0)=12, and solving for x will get you -4.
You can also solve graphically by plugging in the equation and looking at where it intercepts the x axis.