Ollie stacked blocks on top of each other. Each block was LaTeX: \frac{3}{4}3 4 inch tall. When Ollie was finished stacking blocks, his stack measured LaTeX: 10\frac{1}{2}10 1 2 inches. How many blocks did Ollie use?

Two trains leave stations 546 miles apart at the same time and travel toward each other. one train travels at 95 miles per hour while the other travels at 115 miles per hour l. how long will it take for the two trains to meet