The speed of an object falling is directly proportional to the time it has fallen. after an object falls for 3 seconds its speed is 16.5 m/s what is the objects speed after it has fallen for 7 seconds a27.5 m/s
b30.7 m/s
c 33.9 m/s
d 38.5 m/s

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

Collin did the work to see if 10 is a solution to the equation r/4=2.4

Astore sells 4 apples for $3 and 3 oranges for $4 if pete buys 12 apples and 12 oranges how much will it cost