What expression must the center cell of the table below contain so that the sums of each row and each column are equivalent? -4 9x 2x
7x ? -3x
4x -5x 8x

What is the exact volume of the cylinder 1.5 m 2.5 m

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

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