Eighty is what percent of 400?

40%

20%

80%

5%

Suppose IQ scores are normally distributed with mean 100 and standard deviation 10. Which of the following is false? a. A normal probability plot of IQ scores of a random sample of 1,000 people should show a straight line. b.

Harvey plans to use 5 ft of shelving for four shelves whose lengths are to be a series of consecutive even numbers.

What is the least common denominator (LCD) for these fractions? 1/12 and 3/4 4 12 16 48

Which of the following could be represented using a continuous probability distribution? a) The frequency for which different sized flat rate boxes are purchased at a post office b) The frequency of temperatures throughout the day in Florida on

Jennet graphs the inequality Negative 6 less-than x on the number line below. A number line going from negative 11 to negative 1. An open circle is at negative 6. Everything to the right of the circle is shaded.

2. Find the sum of the interior angles of a 40- sided polygon What's the answer

What is 4.97 rounded to the nearest whole number

I don't u understand derivatives

2y-y+7-1+3+7x 2 - 4y combine like terms

Tracy bought five teddy bears for her grandchildren at a total cost of $94.00. What is the cost per teddy bear?