HELP PLEASE. 20 POINTS

pick more then one.

Which algebraic representation shows a dilation? (x, y) → (y, -x) (x, y) → (-x, y) (x, y) → (x+2, y+2) (x, y) → (2x, 2y)

Determine whether the graphs of y=8x+5 and -y=8x-5 are parallel, perpendicular, coincident, or none of these. a. coincident b. parallel c. perpendicular d. none of these

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

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation