The formula B=30a is used to estimate the minimum furnace output, B, in BTUs, for a modern house with the amount of square feet of flooding, a. Determine the minimum furnace output for a 1600-ft^2 modern house

How do you write something in scientific notation?

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

Which rule describes the composition of transformations that maps △abc to △a”b”c