Given the relations a: (3,2), (5,3), (6,2), (7,4) which statement is true?
both a and a^-1 are functions
neither a nor a^-1 is a function
only a is a function
only a^-1 is a function

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

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