A machine depreciate in value at the rate of 10% every year on reducing balance. If the original cost is #20000 and the ultimate scrapped value is #13122, how long has the equipment been used?

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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 letters from the table represent like terms? a and b b and c a and d b and d