Amanda's first four test scores are 77, 95, 84, and 69. what does amanda need to score on the next test to have at least an 82 average? a) 85 or greater b) 90 or greater c) greater than 85 d) greater than 92

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

How many solutions does the nonlinear system of equations graphed below have?

Combine like terms to make a simpler expression 3z+z