Which description can be written as the expression 8/21n?
a the quotient of twenty-one times a number and eight
b the product of eight and twenty-one times a number
c the quotient of eight and twenty-one times a number
d the product of twenty-one times a number and eight

Asegment in the complex plane has a midpoint at 7 – 2i. if the segment has an endpoint at 11 – 3i, what is the other endpoint?

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

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?