<span>If the common ratio is greater than 1 (which it is in this case), then the series will be divergent. The infinite series will simply keep growing and growing, making it impossible to find the "upper limit." Thus, the correct answer is b.</span>
If they're just one square-inch tiles, I think 900?
time = -48/(2*-16) = 1.5 seconds
height = -16(1.5)^2+48(1.5)+6 = 42 ft
This is the prime factorization of 80 in index form:
80 = 2 x 2 x 2 x 2 x 5 = 24 x 5
hope this helps.