The Verrazano Narrows Bridge has a main span of 4,260 feet. The Akashi Kaikyo Bridge has a main span that is 53% longer. What is the length of the main span of the Akashi Kaikyo Bridge to the nearest foot? a2,002 feet
b2,258 feet
c7,170 feet
d6,518 feet
explain

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.