You want to build a bicycle ramp that is 10 ft long and makes a 30 degree angle with the ground. What would be the height of the ramp? PLZ HELP ME

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!

Type the correct answer in each box, round your answers to the nearest integer 20 25 30 in the figure, the perimeter of hexagon abcdef is approximately w units, and its area is square units