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:

Water flowing from a faucet can fill 1/4 of a tank in 3 minutes. How long does it take to fill the tank completely with water?

Every two hours a scientist spends 1.75 hours observing dolphins and 2.5 hours serving sea lions at this rate how many total hours with the scientist been observing dolphins and sea lions in 10 days

Convert 7.8 liters to milliliters. 0.0078 mL 78 mL 780 mL 7,800 mL

Raquel and Van live in two different cities. As part of a project, they each record the lowest prices for a gallon of gas at gas stations around their cities on the same day. Raquel's data reflect a mean price of $3.42 with a standard deviation of 0.

A table shows a golfer score for each round of a tournament Scorecard Round 1: - 2 Round 2: - 6 Round 3:-7 Round 3: - 3 What was the golfers mean score per round?

Michael has $1.95 totally in his collection, consisting of quarters and nickels. The number of nickels is three more than the number of quarters. how many quarters and nickels does Michael have?

What is 12.28 as a mixed number

There are 180 white lockers in the school. There are 3 white lockers for every 5 blue lockers. How many lockers are in the school?

What is 3x-2y=5 in slope intercept form

Q. A mechanic has a radiator hose that measures 32 feet long. It needs to be cut into pieces equaling 5 feet 3 inches. How many whole pieces can it be cut into?