Find the sum of the first 20 terms of the arithmetic series 0.5+1.1+1.7+2.3+2.9+ write the next term in the sequence. then write a rule for the nth term

Which statement justifies why angle ebc measures 90?

How to use order of operation in 20 divide by 4 multiply 5 = 1

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling