a tower is 50m high its shadow is x meters shorter when the suns altitude is 45 degree than when it is 30 degree, find x correct to the nearest cm

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?

(c) a vine called the mile-a-minute weed is known for growing at a very fast rate. it can grow up to 0.5 ft per day. how fast in inches per hour can the mile-a-minute weed grow up to? show your work using the correct conversion factors.

5cakes cost 3.50 how much do 7 cakes cost