How to subtract a negative from a positive number?

Ann took a taxi home from the airport. The taxi fare was $2.10 per mile, and she gave the driver a tip of $5. Ann paid of a total of $49.10. Write an equation

Your school has a $1200 grant to buy books and magazine subscriptions for the school library. The avarage cost of magazine subscription is $30. Your school decided to spend $870 on books and the remaining amout on magazine subscriptions.

What is the least common multiple of 12 and 5?

What are two numbers that multiply to be - 150 and add up to 19

There is 4/5 of a litre of milf in a jar. If Sue pours out 250 ml of milk from the jar, how much milk will be left?

Water flows over a dam at a rate of 500 gallons per minute. Write a function rule relating the amount of water (A) that flows over the dam to the number of minutes (M) that have passed. What are the initial value and rate of change?

William works at a nearby electronics store. He makes a commission of 6% on everything he sells. If he sells a computer for $764.00, how much money does William make in commission?

If you roll a single six-sided die, what is the probability of rolling an odd number? A. 1/6 B. 1/3 C. 1/2 D. 3

Among the 1018 respondents, 179 said that cellular phones are "not at all annoying". What percentage of respondents said that cellular phones are "not annoying at all"?

Misty and yesenia have a group of base ten blocks. Misty had six more blocks than Yesenia. Yesenias blocks represent 17. Together they have 22 blocks, and the total number of blocks represent 85. What blocks could each girl have? What is the value?