,

Set up the composite result function.

Evaluate by substituting in the value of into .

Apply the distributive property.

Multiply by .

Multiply by .

Find c(r(x)) c(x)=900+25x , r(x)=100x-x^2

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# Find c(r(x)) c(x)=900+25x , r(x)=100x-x^2

,

Set up the composite result function.

Evaluate by substituting in the value of into .

Apply the distributive property.

Multiply by .

Multiply by .

Find c(r(x)) c(x)=900+25x , r(x)=100x-x^2