James opened a new bank account with $125.00. He made deposits of $47.50 and $30.20. He also made a withdrawal of $16.23. What is his current balance? A. 9
B. 186.47
C. 1 13/18
D. 25.3
E. 6

Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- 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. 3- 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 part b?