Leema's test scores in chemistry are 80, 95, 88, 92, and 100. find the mean and standard deviation of the data. if necessary, round to the nearest tenth. mean: standard deviation:

Issof claims that the scale factor is 1/2. which statement about his claim is correct

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?

Taina went to the toy store and spent $21.05 on a board game, $2.75 on coloring books, and $13.22 on a model airplane. about how much money did taina spend in the toy store?