Farmer Brown had ducks and cows. One day she noticed that the animals had a total of 20 heads and 66 legs. How many of the animals were ducks and how many were cows?

Solve. After filling a gas tank the odometer read 39 comma 007.239,007.2. After the next filling it read 39 comma 469.239,469.2. It took 16.516.5 gal to fill the tank. How many miles per gallon did the driver get?

What does it mean by round to the nearest degree.

Convert 60ft/s to mi/min

Solve the inequality - 17 < 3x + 4 ≤ 19

Louis has 45 pencils and 75 pens to divide into gift bags at the fair he does not want to mix the pens and pencils he wants to place an equal amount in each bag what is the greatest place in each bag

If and represent rational expressions and b0 and y0, what is true of their product? Check all that apply.

The problem is 7 (y + 2) + 3

For every 4 feet of fencing, the cost is $36 2 4 7. 10 8 36 81

The difference between the two square roots of a whole number is about 5.3 what is the number

Is x+y=6 a direct variation? Why or why not?