At 4 o'clock the temperature was 11oc but by 10 o'clock that night it had dropped to 4 oc. describe this change in temperature

I'll give brainliest if you answer right : )

11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"

Find the solution(s) to x^2-14+49=0