Escreva o número formado por nove centenas mais seis dezenas mais oito unidade​

How do you solving the solution of each system using elimination?

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

What number line represents the solution set for the inequality -1/2 greater than or equal to 4