What is 257,650 rounded to the nearest ten

Simplify 6r · s · 4rt.

Ratio as a fraction in lowest terms $100:$90

Brandon has lunch at a cafe and the cost of his meal is $25.00. Because of the service, he wants to leave a 5% tip. What is his total bill including tip?

What is an integer? I can't remeber lol XD

Petey is considering investing $19 in a certain company. Financial advisors forecast that there is a 30% chance that the s will increase in value by 10%, and a 70% chance he will lose his initial investment.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.