Heads and Tails, the two championship racing turtles, took off from the starting line at the same time. Heads was moving at 25 feet per minute, while Tails was racing at 20 feet per minute. How long will it take Heads to be 55 feet ahead of Tails?

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

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Is the figure congruent? yes or no?