During a research experiment, it was found that the number of bacteria in a culture grew at a rate proportional to its size. at 88: 00 am there were 4 comma 0004,000 bacteria present in the culture. at noon, the number of bacteria grew to 4 comma 8004,800. how many bacteria will there be at midnight?

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