The radius of a circle is the distance from its center to the edge of the circle. The diameter is the length of a line segment that passes through the center and has endpoints on the edge of the circle. How are the radius and the diameter of a circle related? If needed, draw a picture on a piece of paper to help you explain.

The relation is that the diameter is twice the length of the radius.

To make more proof, look at the attached image below.

Step-by-step explanation:

hello :

the radius and the diameter of a circle related by this expression : d= 2r

d : diameter      r : radius

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

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also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt