Which expression is equivalent to:

25a + 5b - 13?

20a + 5a + b - 13

20 (5a+5b) - 13

5 (5a+b) - 13

30ab - 13

What are the domain and range of the step function with the equation below? fx) = -3[x]

The circumference of a circular swimming pool is 100 feet. If the radius of the pool is doubled, what will the new circumference be?

Which of the following probabilities can be determined using a uniform probability model? a: The probability of going to school tomorrow. b: The probability of a car wreck happening at any given time. c: The probability of sneezing 10 times today.

If the circumstance is 24,901 what is the diameter?

74,181,467 in scientific Notation

Which expressions are equivalent to 5 (-2k-3) + 2k

Savannah is a real estate agent who works strictly for commission. If she gets paid 3% commission of a home's sales price, how much would she earn if she sold 2 houses totaling $560,000?

How many square inches are in 60 ft.²

Find the product - 3x (-8x^2+5x+3)

James's sister is 4 years younger than James. Their combined Ages add up to 33. How old is James?