When tossing 4 coins, what is the probability that you will get two heads and two tails? Express your answer as a fraction in lowest terms.

Find the multiplicative inverse of 8-12i

What is the difference between the predicted value and the actual value

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )