1. Identify the error in generating an expression equivalent to4 + 2.c 1 (10 – 4x) Step 1: 4 + 2x + 3(10+ -41) Step 2: 4 + 2 + 5 + 2. Step 3: 4 + 2r - 5 + 2x Step 4: 1 Which step contains an error? Step 1 O Step 2 O Step 3 o Step 4 2. Explain the error and how you would correct it. Type your response in the space below.​

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