If an average rectangular block of limestone used to build the Great Pyramid of Khufu at Giza is approximately 2.75 feet by 3.5 feet by 4 feet, and limestone weighs approximately 170 pounds per cubic foot, what is the weight of one of the limestone blocks used to build the pyramid?

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

What can you determine about the solutions of this system

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°