Respuesta :

A. 4

if r = 10 then that will be 30 because it’s 3 r meaning 3 times whatever r is (10 in this case)
and if 10 plus 5s is equivalent to 3 r which is 30, s will have to be 4 because 5 times 4 is 20 and 20 plus 10 is 30.

Answer:

A. 4

Step-by-step explanation:

Just took the Unit Test and got it correct on Edge.

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