The key club is selling nachos at the football game to raise money for the club's activities. the club received good prices for the ingredients from the local stores, so each serving of nachos costs them only $0.50. the members plan to sell each serving of nachos for $1.25. what percent markup is in this price?

Why is it difficult to find length of the hypotenuse the same way the length of the legs can be found?

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered

Qrst is a parallelogram. determine the measure of ∠q pls