Afunction f(x) is defined as f(x) = −8x^2. what is f(−3) ?
f.−72
g. 72
h. 192
j.−576
k. 576

If it 8 inch candle burns at 7/10 inch per hour and a 6 inch candle burns at 1/5 inch per hour after how many hours would both candles be the same height