What is this person and what is he

Empty box + box + empty box fill in the box is equal to 30 how

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 +"

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?