I know you have 1 and 3 right but I'm sorry about not knowing the rest.
Answer:
n((2n+3)(5n+2x))
Step-by-step explanation:
that is the step by step solution
(6 1/2 + 2 2/5) + 2 1/2
8 9/10 + 2 1/2
= 11 2/5
Answer:
The radius is 15
Step-by-step explanation:
In the equation, 225 is a square of a radius, so the radius itself is the square root of 225, which is 15.