Help please I need my extra credit

What is the value of x? enter your answer in the box. (cm)

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

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?