What is the value of y in the system of equations shown below?

7x − 7y = 49
3x − 16y = 34

Brent needs to paint a logo made using two right triangles. the dimensions of the logo are shown below. what is the difference between the area of the large triangle and the area of the small triangle? (1 point) select one: a. 4.5 cm2 b. 8.5 cm2 c. 16.5 cm2 d. 33.0 cm2

Me with this one question, and i'll upvote the brainliest answer

Find the area of the regular hexagon if a side is 20 cm.