Hisako sells dolls at her doll store for $35. If a customer who wants to purchase it has to pay $2.80 sales tax for this doll, what is the sales tax rate?

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Jasmine wants to eat at 8: 00pm her meal takes 65mins to cook what time does she need to put the meal in the oven