What is the product of 3.5 and 1.82

If you roll two fair dice (one black die and one white die), in how many ways can you obtain a 4 on at least one die?

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?