What's the geometric mean for 4 and 7

Jin buys 4 balls of yarn for a total of $23.78. she pays with two $20 bills. what is her change?

Dylan uses the expressions (x2 - 2x + 8) and (2x2 + 5x - 7) to represent the length and width of his bedroom. Which expression represents the area (lw) of Dylan's room? A. 2x^4-10x-56 B. 2x^4+10x+56 C. 2x^4+x^3-x^2+54x-56 D. 2x^4+9x^3+33x^2+54x+56

You put $700 into a savings account with an interest rate of 10% which earns $140.00 over a period of time. How long was the period of time? Answer value?

7.5% of what is 7.38?

Which table of values represents a function? x y 2 8 6 9 6 3 5 7 x y -3 10 4 4 -5 - 3 4 4 x y 1 2 1 4 1 6 1 8 x y 5 2 -3 2 2 2 1 7

What is 5,853.128 rounded to the nearest hundredth

What is n? If 3 to the power of n equals 27

On an average day, Americans spend $1958904.00 buying video games. Of this total $1167123.00 is spent on Sony PlayStation games. In one week how much do Americans spend on Sony PlayStation games.

My favorite song gives away 25% of the sales of her signature fragrance collected to her charity. Last month her sales were $1,200. How much of her total did she donate?

This is a standard deviation contest. you must choose four numbers from the whole numbers 22 to 9595, with repeats allowed. choose four numbers that have the largest possible standard deviation.