Answer: 57.266
Align all the decimal point and do the operation required.
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Answer:
all work is pictured and shown
First we multiply 2r*r and it gives us

.
Then -5r, + 20r = 15r
Then -5*10 gives us -50.
So the answer is:
Answer:
Equivalent expression is 
Step-by-step explanation:
Given expression is,

First step is to apply distributive property. The property states that,

Applying the property,

Simplifying,

Collecting like terms,

Combining the like terms,

Therefore, equivalent expression is 