Emily studied people in her school and determined that 75 out of 100 people in her grade could roll their tongues. If there are 1.200 people in her neighborhood predict how many of them can roll their tongues

What is the correlation coefficient for the data? don't forget to turn the diagnoisticon (in the catalog menu of the calculator). r = answer (round to the nearest thousandth)

How many grams must be adde to 970g to make 1 and a half kg

Suppose that circtes a and b have a central angle measuring 100. additionally, the measure of the sector for circle a is 10 m2 and for circle b is 40 m2 if the radius of circle a is 6 m, what is the radius of circle b?