How do i simplify 1/2 times 1/3 divided by 2/3

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 +"

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee