1 three tails you flip a fair coin until you see three tails in a row. what is the average number of heads that you'll see until getting t t t?

What is the decimal expansion of 13/8

What is the notation of z to the 2nd power = 4

2 (x + 1) + 1 = 1 - 2 (x - 7)

Find the missing coefficient. (52 - 7) (54 - 6) = 254 + _ d + 42

Researchers were interested in knowing if preterm infants with late metabolic acidosis and preterm infants without the condition differ with respect to urine levels of a certain chemical.

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.