12 divided by 768,907 times that by 3 add 6 yaaake away 7

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

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?