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yesterday the manager at eric’s bank called him to say that the balance in eric’s account was −4 dollars and that the bank was charging his account 5 dollars because his balance was negative.

eric went to the bank and added 15 dollars to his account so that his balance would be positive.

use the number line below to show how the balance in eric’s account after started and ended after he went to the bank.

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