You are given the masses of four planets.
Add them together, and then divide your sum by 4.
That will be the "average planet mass" for these 4 planets.
Answer: 50+10x
Answer: 25+10x
Answer: No. 50+10x=25+10x. In simplified form, it is 0 =25 which is undefined (no solution).
<em><u>The equivalent expressions are:</u></em>

<em><u>Solution:</u></em>
<em><u>Given expression is:</u></em>

We have to find the equivalent expressions
By distributive property,
a(b + c) = ab + ac
Therefore,

Thus equivalent expressions are found
Answer:
Odd function
Step-by-step explanation:
So to see if a function is odd or even we need to plug in a negative x for x, so f(-x)=4(-x)^3-5(-x). This produces -4x^3+5x, which is the exact opposite of the original equation, so it is an odd function. If it were even, then the signs of the coefficients would be the same as the original function.