Yeal al Uso per annum be Rs.40 more than the compound interest on the compounded annually in the same time and at the same rate, find the sum.
(a)
in 2 years 3 months at 4% p. a.
(b) Find the difference between the
simple interest of
Find the difference between the simple interest and compound interest of Rs.4500

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