Asmall business owner borrowed $4,200 at an annual simple interest rate of 12%. what is the total amount that must be repaid in 3 months?

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 slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

10 points? me . its important ‼️‼️