Calculați: a) 25% din 100 m b) 30% din 12,05 km c)40% din 60 m2(metru patrat) d) 32% din 3 1 supra 3 kg e) 0,1 % din 10 l

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

Polygon abcd is a parallelogram, and m? abc = 127°. the length of is 10 units, and the length of is 5 units. the perimeter of the parallelogram is units, and m? bcd is °

The formula to determine energy is e=1/2mv2? what is the formula solved for v?