!PLEASE HELP ME! write an equation of the line that passes through (7,10) and is perpendicular to the line y = 1/2x - 9

(Please explain how to do it as well bc I have three other questions similar to this and im so confused. This is for math hw btw.)

20 points for the brainliest? drag each tile to the correct box. not all tiles will be used. arrange the steps to solve the equation . plz

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.