Attendance at a concert was 480. the ratio of adults to students was 5 to 3. how many adults attended? how many students attended? please show work!!​

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Write the factored form of this trinomial 9x^2+18x-7

He trapezoid is composed of a rectangle and two triangles. what is the area of the rectangle? what is the total area of the triangles? what is the area of the trapezoid? ? a) 42 cm2; 27 cm2; 69 cm 2 b) 54 cm2; 27 cm2; 81 cm 2 c) 108 cm2; 27 cm2; 135 cm 2 d) 108 cm2; 13.5 cm2; 121.5 cm 2