How do you write 2 thousands 9 tens and 18 ones in standard form

Find a number such that if you add 8 and divide the result by 4 you will get the same answer as if you subtracted 3 from the original number and divided by 2

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

What is the value of x in the following equation. -x ^3/2 = -27