Last year 80 students signed up for s summer trip to washington, d. c. this summer 50 students have signed up to go. what is the percent decrease in the number of students?

Ten times the square of a non-zero number is eqaul to ninety times the number

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap

First work with stencil one. use a combination of reflections, rotations, and translations to see whether stencil one will overlap with the original pattern. list the sequence of rigid transformations you used in your attempt, noting the type of transformation, the direction, the coordinates, and the displacement in