Credit card A has an annual fee of $50 but
gives you a rebate at the end of the ve
2% of your total purchases. Credit card Bh
no annual fee or rebate. If you spend about
$150 a month, which card is better for you?

Need this asap if anyone can i would be very grateful. if you could show workings that would really

How to use order of operation in 20 divide by 4 multiply 5 = 1

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?