Zalia meets her friend at the science museum to see a special exhibition. the admission to the museum is $12.50 plus tax. zalia pays for herself and her friend. they have lunch at the museum’s cafe. zalia has a sandwich for $5.95, an apple for $1.25 and a drink for $1.69. she is charged tax and also tips her server 15%. if tax is 7.25%, how much did zalia pay all total for her day at the science museum?
a.
$41.43
b.
$37.68
c.
$36.35
d.
$24.27

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

Triangle xyz has vertices x(1,3), y(0,0)

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?