How many three-digit positive integers exist, all of whose digits are 2's and/or 5's?

Round 1,647 to the nearest thousand

1/3 x 1/5 in its simplest form

When you flip a biased coin the probability of getting a tail is 0.6. How many times would you expect to get tails if you flip the coin 320 times?

The number of visitors to a park is expected to follow the function v (x) = 6 (x - 1), where x is the number of days since opening. On the first day, there will be a ceremony with 26 people in attendance.

Which expression represents the sum of (2x - 5y) and (x+y)

If lines ab and cd are parallel which of the following statements are true

You paid 28.00 for 8 gallons of gasoline. How much would you pay for 15 gallons of gasoline?

K/2 - 1 = 1 solve for k

What is the area of this parallelogram? 6 cm 2 cm

Suppose you want to create a set of weights so that any object with an integer weight from 1 to 40 pounds can be balanced on a two-sided scale by placing a certain combination of these weights onto that scale.