George bought 14.2 gallons of gasoline priced at x dollars per gallon, 2 quarts of oil
priced at y dollars per quart, and a wiper
blade at $3.79. Which expression
represents the total cost of these items?

What situation is an example of an observational study

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

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x