∘ ∠A=7x+40 ∘ start color #11accd, angle, A, equals, 7, x, plus, 40, degrees, end color #11accd ∠ B = 3 x + 11 2 ∘ ∠B=3

Answer this question only if you know the answer! 30 points and

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

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