What is the solution to the system of equations? Use the substitution method.

y-3x=7

21+9x=3y

A. There is no solution

B. There are an infinite number solutions

C. The solution is {1,10}

D. The solution is {28,0}

A water cup in the shape of a cone has a height of 4 inches and a maximum diameter of 3 inches. What is the volume of the water in the cup, to the nearest tenth of a cubic inch, when the cup is filled to half its height?

Isabella filled her pool with water at a constant rate. The table compares the remaining volume of water left to fill the pool (in liters) and the time since Isabella started filling the pool (in minutes).

3/5x-15=6/3x 12 what's the answer

In a survey of 2,000 who owned A certain type of car 1100 said they would buy that same type of car again what percent surveyed were satisfied with the car

One of the parallel sides of a trapezium is 5cm longer than the other. If the prependicular distance between them is 9cm and area is 126cm 2 , find the length of the parallel sides.

To pass a math test students must answer at least 0.6 of the questions. Donald's score is 5/8, Karen's score is 0.88, Gino's score is 3/5, and Sierra's score is 4/5. How many of the students passed the test?

Yolanda's class has 40 members. The teacher will not give a test unless at least 80% of the class is in attendance. How many class members must be present in order for the teacher to give a test?

If lemonade costs 1.5 cents per ounce, what is the cost per pint?

Consider the three functions: f (x) = Three-halves (4) x g (x) = Three-halves (4) - x h (x) = - Three-halves (4) x Which statements are true about the domain and range of f (x), g (x), and h (x) ? Check all that apply.

An object's weight on Earth varies directly to its weight on the Moon. If a man weighs 180 kg on Earth, then he will weigh 30 kg on the Moon.