Missing angles in triangles

If 3x is the opposite of - 5, what is the value of x? -3 5 5/3 -1/15

12. What is the effect when the sample size is increased? a) Confidence interval decreases, error decreases b) Confidence interval decreases, error increases c) Confidence interval increases, error increases d) Confidence interval increases, error

Raise seven to the ninth power

What is the slope of a line

Break apart ones to subtract 36-7

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.