Is it a b c or d i need help

What is the perimeter of square abcd? units units 28 units 37 units

During a wright loss challenge your friend goes from 125 pounds to 100 pounds.what was the percent weight loss

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