an adventurous girl jumped off of a cliff into the ocean while vacationing with friends. her height as a function of time is modeled by the function: h(t)= - 16t^2 + 16t + 192

Write the rational number in lowest terms 99/-15

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *