300 balls are hidden. 40% are yellow the rest are white. A team finds 20% of the yellow balls and 80% of the white balls. How many balls did the team find in all?

Which of exercises 17-22 could you solve mentally?

The volume of one sticky note?

Tom spent 1/6 of the day working in the flower bed. Tom spent 2/3 of that time adding mulch to the flower bed. What fraction of the day did Tom spend adding mulch?

The sales tax in one town is 8%. So, the total cost of an item can be written as c + 0.08c. What is the total cost of an item that sells for $12?

Which is the first step in solving the equation 3 = 5 + 2 (x - 3) ?

What is an estimate of the value of 0.0000000055 as a product of a single digit and a power of 10?

How do you solve (a-1) - (a+2) - (a-3) = a

Which expression has a value of 7? a.[ (29-18) + (17+8) ] divide by 6 b. [ (29-18) + (17-8) ] divided by 4 c. [ (29+18) - (17+8) ] divided by 2 d. [ (29+18) + (17-8) ] divided by 8

Suppose that an individual has a body fat percentage of 13.3% and weight 183 pounds how many pounds of her weight is made up fat? Round your answer to the nearest tenth

If the rate of inflation is 3.9% per year, the future price p (t) (in dollars) of a certain item can be modeled by the following exponential function, where t is the number of years from today. p (t) = 400 (1.039^t).