A sculpture is made of solid copper in the shape of a cone. The sculpture is 67 inches tall, and it’s base has a radius of 15 inches. If copper costs $1.06 per cubic inch, how much did the copper for the sculpture cost HELP

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

Find the value of x. round the length to the nearest tenth

Which is f(5) for the function –2x2 + 2x - 3?