Plz a baseball has a diameter of 7.4 centimeters. which of the following is closest to the surface area of the baseball? ( use 3.14 for pi)
a. 93 cm²
b. 172 cm²
c. 186 cm²
d. 688 cm²

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

Solve 13 + w/7= -18 (w/7 is a fraction)

The temperature of a chemical solution is originally 21 ? c . a chemist heats the solution at a constant rate, and the temperature of the solution 75 ? c after 1212 12 minutes of heating. the temperature, tt t , of the solution in ? c is a function of x , the heating time in minutes. write the function's formula.