En un parque, a cierta hora del día, se encuentra un joven de 1.86 metros de estatura que proyecta una sombra de 4.3 metros. Calcula la altura de un árbol que al mismo tiempo proyecta una sombra de 15 metros.

Nikolas calculated the volume of the prism. his work is shown below.

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.