what are three equivalent fractions of 4/9?

How do you write the quotient (9+i) over (9-i) in standard form? I need the answer but more importantly, I need to learn how to solve these kinds of problems.

Deanna collected data on the favorite sports of the students of two grades. the table shows the relative frequencies of rows for the data collected: favorite sport swimming running volleyball row totals grade 8 0.14 0.18 0.22 0.54 grade 9 0.17 0.

What is the simplified expression for 6 (2 (y + x))

Joseph owns a store. One week his stores revenues totaled $4200. For the next 5 weeks, his stores revenues decreased by $120/wk. what is the slope?

The city of austin can buy roads or light rail. if 10 miles of roads cost $1 million and 2 miles of light rail cost $10 million, what is the city's opportunity cost of 1000 miles of roads? a. $1,000 million b. 200 miles of light rail c.

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.