Solve for x. 3(x-15)=30
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Write each expression in exponential form and find its value. 2 x 2 x 2 x 2

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.

Which best explains why this triangle is or is not a right triangle ?