Tim needs to apply 21/2 gallons of herbicide per acre of soybeans. How many gallons of herbicide are needed for 360 acres?

A worker has readings that take 22/3 minutes each to read and record. How many readings can be completed in 192 minutes?

A grocer sold 16 bags of potatoes for $1.08 each. What was the total amount of the sale?

2 answers

2.5 * 360 = ?

Or is it 21/2 = 10.5?

Is it 22/3 = 7 1/3 or 2 2/3 = 2.67?

16 * 1.08 = ?
I got:

1.900

2. 72

3. $17.28

are these correct?