How come when you multiply two negatives, it makes a positive?

You pay $620 to rent a hotel room for 4 weeks. The total cost includes an initial deposit plus a weekly fee of $125 Write an equation that represents your total cost y (in dollars) after x weeks.

If 9 is added to twice a number and this sum is multiplied by 3 , the result is the same as if the number is multiplied by 4 and 11 is added to the product. what is the number?

If Tina talks fewer than 100 minutes a month she does not have to pay anything? True or false

Good evening, an object that has more than 2 feet but less than 1 yard.

In a certain manufacturing plant, the first operation can be done on any one of five machines, the second operation on only one machine, the third operation on any one of six machines, and the fourth operation on either of two machines.

Ms Cooke bought 9/10 of a cake. She ate 2/5 of her cake. How much cake left.

The average of 4 number is 85. if three of the numbers are 76, 78, and 81 what is the fourth number.

Aiden and Ryan are collecting clothes for a shelter. Ryan collected 1/4 as many clothes as Aiden did. If Aiden collected 12 bags of clothes, which expression below could you use to find out how many bags of clothes Ryan collected? a. 12 : 1/4 b.

29, 19, and 29 triangle as acute, right, or obtuse.

Dean ran 1 2/5 miles. Sheila ran three times as far as Dean. How far did Sheila run?