Abakery uses 10 4/5 ounces of icing for every 1/4 of a cake. what is the unit rate in ounces of icing per cake

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Ateacher noticed 5/8 of the students were wearing either blue shorts or white shorts. write two different ways this could be done.

What is the expression in factored form? -20x^2 - 12x a. 4x(5x+3) b. -4x(5x-3) c. -4(5x+3) d. -4x(5x+3)