If an object travels 100 feet in 2 seconds, what is the object’s approximate speed in miles per hour? (note: 1 mile = 5280 feet)
a. 3.4
b. 3.8
c. 34
d. 38
e. 340

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations