Gloomy toothpaste comes in two sizes 9 ounces for $0.89 and 12 ounces for $1.15. which size tube is the better buy?

What is the y intercept of f(x)=(1/2)^x?

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f

Can someone tell me if this is perpendicular? !