A few students are having a bake sale to try to raise more than $600 for a class trip. They sell cupcakes (c) for $2 each and pies (p) for $5 each. If the students have already sold at least 30 cupcakes, which of the following systems of inequalities represents the situation?

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

Simplify using positive exponents only.

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities