What is the solution for the equation 4x -10 equals 2x

x=5
x=4
x=1
x=1.67​

Write a recursive sequence that represents the sequence defined by the following explicit formula:

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank