Aplique as propriedades de potência de mesma base para reduzir a uma única potência: (-8)⁵.(-8).(-8)⁴​

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.

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