Katrina said that the lines y=-2/3x + 5 and y=-3/2x + 2 are perpendicular. Explain Katrina's error.

Salas little brother is learning to talk. he has a vocabulary of 30 words. each week his vocabulary grows by about 6%. at this rate how many words will he know 5 weeks from now

What is greater the LCM or the GCF

To convert from pounds to kilograms, multiply by?

What is the factored form of the expression t^2-25

When 2 fractions are between 0 and 1/2, how do you know which fraction is greater?

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.