The amount of carbon in a rock decreases at a rate of 5% per year. The amount of carbon in the rock was originally 75 grams. Which function models the amount of carbon in grams left after x weeks?

Which quadratic function best fits this data? x y 1 32 2 78 3 178 4 326 5 390 6 337 a. y=11.41x2+154.42x−143.9 b. y=−11.41x2+154.42x−143.9 c. y=11.41x2+154.42x+143.9 d. y=−11.41x2+154.42x+143.9

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities