So you want to add all the shapes first. 18+3+8=29
So that's the total. Then the number of stars is 3.
So the ratio of stars to all shapes is 3:29.
Lets get started :)
We need to isolate t from x =

at²
Take 2 to the left-hand side { Do multiplication since you see division }
2x = at²
Take a to the left-hand side { Do division since you see multiplication }

= t²
Take square root since t is to the power of 2

= t
Simplify.
3x^2−7x+9 - 2x^2+4x−8
1. 3x^2-2x^2 = x
2. -7x + 4x = -3x
3. 9 - 8 = 1
Combine.
x -3x +1
Thus, 2x^2+4x−8 is x -3x +1 less than 3x^2−7x+9
Answer:
89.49 if is the entire circle and 44.745 if is a semi circle
Step-by-step explanation:
57 / 2 = 28.5 this is the ratio
28.5 * 3.14 = 89.49