Who ever answer all these questions will get brilliantist and 5 stars

A. Because 4:5 and 8:10 are equivalent because

4:5 are already in the lowest term

8 and 10 are can simplify by 2 ensure that you know how to lowest term

8 ÷ 2 = 4 and 10 ÷ 2 = 5 Overall it equals to 4:5

B. Because 18:3 and 6:1 are equivalent because

6:1 are already in the lowest term

18 and 3 are can simplify by 3 ensure that you know how to lowest term

18 ÷ 3 = 6 and 3 ÷ 3 = 1 Overall it equals to 6:1

C. Because 2:7 and 10,000:35,000 are equivalent because

2:7 are already in the lowest term

10,000 and 35,000 are can simplify by 5,000 ensure that you know how to lowest term

10,000 ÷ 5,000 = 2 and 35,000 ÷ 5,000 = 7 Overall it equals to 2:7

Explain why 6:4 and 18:8 are not equal

18 and 8 are can simplify by 2 ensure that you know how to lowest term

18 ÷ 2 = 9 and 8 ÷ 2 = 2 Overall it equals to 9:2 not in 6:4

Explain why 3:6 and 6:3 are not equivalent

3:6 can also represent 6:3 just if you reverse it

3 and 6 are can simplify by 3 ensure that you know how to lowest term

3 ÷ 3 = 1 and 6 ÷ 3 = 2 Overall it equals to 1:2

The diagram represents

9:15 but you can simplify this ratio

9 and 15 are can simplify by 3 ensure that you know how to lowest term

9 ÷ 3 = 3 and 15 ÷ 3 = 5 Overall it equals to 3:5

In fruits

A. For every 4 apples there are 3 oranges

B. The ratio of bananas to oranges is 6:3

C. The ratio of apples to bananas is 4 to 6

D. For every 1 orange there are 2 bananas

probably .5

i can on others if necessary.

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.