What is 3x+10 it’s for khan academy

Can't be simplified any further

Step-by-step explanation: You might think that 3x + 10 simplifies to 13x but that's not the case. 3x + 10 can actually not be simplified.

In order for you to be able to add two terms together, you need to have variables that are the same and these are called like terms.

Like terms need to be exactly like except for the coefficients which are the numbers that appear right in front of the variables.

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: