What does this symbol mean? "∩" and this symbol "∈" and how do you use them?

If a soldier lifts a 2-kg counterweight 0.5 meter, how much work is done?

Derek ms car average 30 miles per gallon. how much gas will he use if he is traveling 454.5 miles?

12 - 6y = 24, what is y?

How many solutions exhaust for the given equation? 3 (x+10) + 6=3 (x+12) a. zero b. one c. two d. infinitely many

The hypotenuse of a right triangle is 55 inches long. One leg is 2 inch (es) longer than the other. Find the lengths of the legs of the triangle. Round your answers to the nearest tenth of an inch. Answer: The lengths are

The perimeter of a rectangle garden is 36 ft. The length is 2 ft more than The width. Find the length and width of the garden.

A random sample of 101 lightning flashes in a certain region resulted in a sample average radar echo duration of 0.81 sec and a sample standard deviation of 0.45 sec.

Jeanette can walk 1 km in 11 minutes. At the same rate, how far can she walk in 55 minutes?

Ella has 0.5 lbs of sugar. How much water should she add to make the following concentrations? Tell Ella how much syrup she will have in each case. 75% syrup?

What is the equivalent expression for 2/3 - 4/5?