My number has two periods. one period contains the digit 3,0 and 6 in that order. the other contains the digits 0,9 and 5 in that order

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.