What expressions are equivalent to 3^x

Multiply. (4x - 5) ^2 A. 16x^2 - 40x + 25 B. 16x^2 - 25 C. 16x^2 + 20x + 25 D. 16x^2 + 40x + 25

The mass of a an atom of helium is 6.65 x 10^-24. Use scientific notation to express the mass of 250 helium atoms. A) 1.6625 x 10-21 B) 1.6625 x 10-22 C) 1.6625 x 10-24 D) 1.6625 x 10-26

How is 42% written as a ratio comparing 42 to 100

1. 14 hours in 2 weeks

if a birthdat cake is cut into 12 pieces and five children each eat one piece, what fraction of the cake is gone?

Factor each trinomial completely. If a polynomial can't be factored, write "prime." See Examples 1 through 8. 1. x^2 + 7x + 6

Which of the graphs below represents the equation 8x - y = - 4?

Mason gave the waiter a $14.58 tip, which was 15 percent of the dinner bill. What was the amount of the dinner bill before he added the tip? A.$9.72 B.$21.87 C.$97.20 D.$218.70

How to create a word problem involving independent and dependent variables

How do you evaluate the expression - 2.3