HELP Geometry marking brainlet correct answers only Find the perimeter of the triangle. Assume that lines that appear to be tangent are tangent.

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?

Write a ratio and a percent for the shaded area. it is 3x3 and 5x5 grid there is 6 shaded out of a. 6 over 25 , 30% b. 3 over 50 , 6% c.6 over 25 , 24% d. 3 over 10 , 30%

How many revolutions will a car wheel of diameter 28 in. make over a period of half an hour if the car is traveling at 60 mi/hr? the final answer is supposedly 21,609 but i have no idea how to get that, show work : )