Si 4 es divisor de 80,80 es múltiplo de 4?

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)

An archaeologist in turkey discovers a spear head that contains 53% of its original amount of c-14. find the age of the spear head to the nearest year. (5250 isn’t right)