A tower 40m high stands at a point B on the ground which is level with the foot of the tower, the angle of elevation of the top of the tower is 36°. Work out the distance B from A.

the first one, all those points on the line just make a strait line.

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

900 degrees

step-by-step explanation: