What is the answer to multiplying

2/5*5/7*1/2

Three times a number, x, increased by four is equal to five times the number, x. Which equation can be used to solve for x? a. 3x+5x=4 b. 3x+4=5x c. 3x=4+5x d. 3x-4=5x

What is the simplified form of the expression x^8·2y^10·5x5

What is 2-3 because I need to know

If x-7=14, what is the value of x-2?

Which of the following angles is not coterminal with the other three? Question 15 options: 231° 51° - 129° 591°

Bob won big at bingo last night, he walked away with $800. The first thing Bob does is to take a cab to his mother's house. He gives the cab driver $20 and tells him to keep the change.

A local company wants to evaluate their quality of service by surveying their customers. Their budget limits the number of surveys to 100.

Select the correct numeral form of this number written in scientific notation. 5.0 * 10^10 0.000 000 000 5 5,000,000,000 50,000,000,000 500,000,000,000

John has a bag of marbles that contains 12 red marbles 20 green and 17 blue. if john pulls one marble what is the probability that it will be a purple marble

Solve for x: 2 over 3 (x - 4) = 2x. 2 - 2 - 8 - 4