There are 12 481 people at a concert. 8906 of these people are adults.
The rest of the people are children.
3/5 of the children are boys.
Work out the number of girls at the concert.

Pl help me

Find the slope of the line y =8/9x + 1.

Create and solve a linear equation that represents the model, where squares and triangles are shown evenly balanced on a balance beam. assume the weight of a square is 1 unit and the weight of a triangle is unknown.

(! ) three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder