What does $42,690e(0.03)×(20) equal​

Nine more than four times a number is the same as one less than twice the number. find the number?

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.

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be