Daniel sees a lighthouse in the harbor. he estimates the angle of elevation is 70°. if the lighthouse is 140 feet tall, what is the approximate distance between daniel and the top of the lighthouse? (assume the lighthouse meets the ground at a right angle.)

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

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

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.