Un vendedor despacha por la mañana las 3/4 partes de las naranjas que tenia. por la tarde vende 4/5 de las que le quedaban. si al terminar el dia aun le quedan 100 kilogramos de naranjas. ¿cuantos kilogramos tenia?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

When you have 25 numbers, and jake picks 3 random numbers and puts them back, what is the chance bob has of picking those 3 numbers when he picks 6 random numbers (without putting them back)? explain.

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.