10. There are four times as many girls as boys at Madison Middle School. Two-thirds of the boys take chorus and 40% of girls take chorus. In total, 205 students do not take chorus. How many students are there in total at Madison Middle School? ​

practice. practice. practice.

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

3xy cannot be combined with the others

2x, -5x and x are like terms