Find the​ z-score for which the area under the standard normal curve to its left is 0.96.

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?