16 Ashley was given $4000 when she turned 2 years old. Her parents
invested it at a 3% interest rate compounded annually. No deposits or
withdrawals were made. Which expression can be used to determine
how much money Ashley had in the account when she turned 18?
(1) 4000(1 -.03)
(2) 4000(1 +.03)
(3) 4000(1 +.03)
(4) 4000(1 -.03)
16
18
18

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

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?