Estimate the difference of 4/5 - 1/2

There are 12 boys and 13 girls in a class. There are 10 boys and 15 girls in a second class. what is the probability that both students will be boys from either class?

Find 3x-y-3z if x=-2, y=1, and z=-2

Rob owns 5/9 of the stock in a local bread company. His sister Talia owns half as much stock as Rob. What part of the stock is owned by neither Rob nor Talia?

Elliott Smith is a lawyer who requires that his clients pay him in advance of legal services rendered. Elliott routinely credits Service Revenue when his clients pay him in advance.

calvin is taking megan to dinner. the bill is $28. if calvin leaves a 20% tip, how much tip will he leave.

Five times the sum of a number and - 1 is the same as 6 times the number. What is thisnumber?

Minxia counted 40 green cars and 20 silver cars in the parking lot. If the number of green cars stays the same, how many more silver card would need to be added so the ratio of green cars to silver cars is 1 to 3?

How do we find the mode of a set of numbers and can there be more than one

Ella is making 3 batches of banana milkshake she needs 3/4 gallon of milk for each bath. Her measuring cup holds 1/4 gallon. How many times will she needs to fill the measuring cup to make all 3 bathes of milkshake.

1 fifth of 50% ...