Determine if the bioconditional is true. if false, give a counterexample

"the bulb does not shine if and only if the lamp is unplugged"

True/False

Counterexample:

A web designer charges a $200 fee plus $50 per hour to build a website. Which equation represents the total cost, y, to a customer based on the number of hours, x, it takes to buld the website? A. y = 50x - 200 B. y = 250x C. y = 200x + 50 D.

Tony cashed a check for $673 at quick cash. the fee to cash a check is11% of the amount of the check. how much did tony pay to cash his check?

Can someone lemme borrow their heart i been feeling lonely and i just want to be loved

50000 fish were stocked in a lake with a 20% decrease each year. whats the 1st year will it be under 5000 fish

What is the size of angle JKL?

Five times a number added to - 4, subtracted from twice the sum of eight times the number and 7

Which would the phrase "two times the quotient of a number and 3" look like as a variable expression? 3 n/2 2 n/3 2 (n-3) 3 (n-2)

In 2012 electricity cost 15p per unit. A family used 3729 units. In 2013 electricity cost 17p per unit. The family used 3506 units. How much more did the family pay for electricity in 2013

What times what equals 29 besides 29 times 1

Reggie is making a double-layer cake the recipe for the first layer calls for 2 1/4 cups of sugar. The recipe for the second layer calls for 1 1/4 cups of sugar Reggie has 5 cups of sugar. How much will he have left after making both recipes