A plane flies 420 miles with the wind and 350 miles against the wind in the same length of time. If the speed of the wind is 15 ​mph, find the speed of the plane in still air.

At his new job, jeremiah can choose an hourly rate of $9 plus a $50 weekly bonus for opening the store, or an hourly rate of $10 per hour with no opening bonus. the equations model his salary options. y = 9x + 50 y = 10x

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Which of the following can be used to explain a statement in a geometric proof?