Use scientific notation to estimate the number of inches in 1,425 miles. include all calculations in your final answer.

1 inch ≈ 1.578 · 10 -^5 miles.

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for 25pts!

At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.

What number is 7 units left of -15?

The formula for the volume of a right square pyramid is given below, where a is the side length of the base and h is the height.