10 с рег 5) In one of the Caribbean territories,
electricity is charged for as follows:
Fixed charge
$4 per month
First 50 kWh
12c per kWh
Next 200 kWh
kWh
All over 250 kWh
8c per kWh
A discount of 10% is allowed on all bills
paid within 14 days.
A householder uses 560 kWh of electricity
in 3 months. How much will he
pay
if the
bill is paid within 14 days?​

Which expression is equivalent to the expression shown?

Which of the following is the shape of a cross section of the figure shown below

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?