Willie deposited $2500 into a savings account for which simple interest is calculated semiannually. If his $2500 grew to $2540 after 6 months, what is the yearly interest rate on Willie's account?

Find the center and radius of (x + 9) ^2 + (y + 6) ^2 = 9. a: (-6, 9); 3 b: (-9, - 6); 3 c: (9, 6); 3 d: (-6, - 9); 9

Why is |-2| positive? Explain.

Tin A has red paint and blue paint in the ratio 2:3. Tin B has red paint and blue paint in the ratio 4:5. Which tin has the greater proportion of blue paint? Explain how you know.

A teacher has 100 chairs to arrange for an assembly into equal rows. Write one way the chairs could be arranged. Include the number of rows and the number of chairs in each row.

To see how 311/500 would be worked out as a decimal

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.