If the sales tax rate in Tiffany's city is 7%, how much tax would she pay if a robot costs $325.80 and a battery costs $12.00?

In which of the situations can information about tyler be represented by the expression r+3 when r represents information about ray? check all that apply.

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.

Cone a has a surface area of 384 ft2 and cone b has a surface area of 96 ft? . what is the ratio of their volume?