1. what is the product written in scientific notation (1.23 x 10^-2) x (7.3 x10^8)2. compare use > , < , or = 6 x 10^-3      5 x 10^-3

Josephine has a great garden with and area of 2x2 + x - 6 square feet

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?