What does n mean in -10(n-5)=40

Devonte is balancing his checking account. his account statement does not include a deposit of $107.00 that he made on november 1st. what is devonte’s actual account balance?

If a seller prepaid the taxes of $4,400 and the closing is set for may 19, using the 12 month/30 day method what will the buyer owe the seller as prorated taxes?

Theo found the driving distance from glacier national park to yellowstone park to be 448 miles. theo used a map that had a ratio of 5cm/300mi. how many centimeters is the distance on the map? round to the nearest unit if necessary. 4 centimeters 7 centimeters 64 centimeters 90 centimeters