An engine pulls four identical carriages. The engine is the length of a carriage and the total length of the train is 86.8 m. Find the length of the engine

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

Hi, can anyone show me how to do this problem? 100 points for this. in advance

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0