BD is parellel to XY, what is the value of x

The measures of the angles of RST are in the ratio 2:4:9. What are the measures of the angles? I din't Know what a ratio is.

If it is true that four out of five dentists recommend chewing sugarless gum after meals how many dentists out of 360 would you expect to make this recommendation

What is the multiplicative rate of change of the function described in the table? 12/5, 5, 25/2, 25

The diagonals of a quadrilateral bisect at right angles. What type of quadrilateral is this? 1) Rectangle 2) Square 3) trapezium 4) parallelogram

If six crates holds 360 hammers, how many hammers does each crate hold individually

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.