Ametal alloy that is made up of 15% aluminum is combined with a metal alloy that is 35% aluminum. if the result is 400 kilograms of 27.5% of aluminum alloy, then how much of each alloy was used?

Which is the graph of the function y=2(4)^x

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?

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?