Can anyone solve this problem?

One person can complete a typing project in 6 hours, and another can complete the same project in 8 hours. How long will it take the two people working together to complete the project?

Write the number in scientific notation:8,500

If a child's knowledge of the alphabet is limited to the letters a, b, c, i, and e, and if the child writes two letters at random (assume the child may write the same letter twice), what is the probability that they are both vowels? 3/5 6/25 9/25

A wise man once said, "400 reduced by 3 times my age is 163." What is his age?

Laura earns $7 per hour baby-sitting for her neighbor. How much will Laura make if she baby-sit for 4 hours?

An office supply company has 180 boxes of paper. they have 22 clients and each client must receive the same amount of paper. how many boxes of paper will each client receive?

Lunna recorded the favorite sport of sudents

An item in regular priced at $81. it is on sale for 35% off the regular price.

You go to a restaurant with four other people the total food is $43.85 you need to add 5% for tax and 15% for tip if you decide to split the bill evenly estimate how much you okay

Can you tell me a quick way to solve this problem 2/7m-1/7=3/14

Use elimination to solve the system of equations. 3x - 5y = - 9 x + 2y = 8