What's the square route of 9

A survey was conducted with high school students in each grade to see how many prefer math or science. Some of the data are shown below. A 6-column table with 3 rows. The first column has no label with entries math, science, total.

Expand and simplify (x+1) (x+3)

Find the multiple of nine that are less than 100

A 90% confidence interval for a population parameter means that if a large number of confidence intervals were constructed from repeated samples, then on average, 90% of these intervals would contain the true parameter. a. True b. False

Which of the following statements about parallelograms are always true? Opposite sides are parallel. Opposite angles are supplementary. All 4 sides are congruent. Diagonals bisect each other.

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.