Trabajando 5 horas , 5 amigos realizan 15 pulseras hilo. ¿Cuántos amigos deberían dedicarse a hacer 72 pulseras si sólo pueden trabajar 4 horas?

How can we find the measure of an exterior angle if we know the measurement of an interior angle

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Diana is painting statues she has 7/8 of a liter of paint each statue requires 1/20 of a liter of paint how many statues can she paint?