If the variance of a variable is 81, what is the standard deviation? (This is a reading assessment question. Be certain of your answer because you only get one attempt on this question.)
The standard deviation is
(Type an integer or decimal rounded to two decimal places as needed.)

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

Which graph represents the function g(x) = |x + 4| + 2?

Which of the binomials below is a factor of this exression? 16x^2+40xy+25y^2 a.4x-5y b. 2x-5y c.4x+5y d.2x+5y