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The ratio of the measures of the 3 angles of a triangle is 1:2:3. What is the measure of the largest angle in degrees?

A school has a boy to girl ratio of 6:7. If there are 288 boys, how many girls are there?

A coin is tossed and a die is rolled. Find the probability of getting a head and a number greater than 4

Raise p to the ninth power, multiply the result by q, then divide what you have by r algebraic expressions

When the circumference of a circle is increased from 10 pi inches to 15 pi inches, by how many inches is the radius increased? 

Divisibility by 8 No Calculator Trick

Divisibility by 9 No Calculator Trick

(Sqrt(24) + sqrt(96))/2

3^14/27^4 = ?

Quadratic equation hacks using the discriminant

What is the percent change from 5 to 8?

Calculate slope graphically

How to plot 2-D points

If y = -72 when x = 6, find y when x is 3

Evaluate 6!/3!5!

Prove P(A U B) = P(A) + P(B) - P(A int B)

Prove P(A’) = 1 - P(A) Statistics probability proof using postulates

Sin(x) * csc(x) * 2cot(x) * tan(x)

Write 3^-2/4^-2 without exponents

Simplify 64^-2/3 * 8^4/3

(4 - a)/(a^2 - 16) act math factoring

Multiply sqrt(-5) by sqrt(-15) act math problem

Subtracting 9s shortcut

|3 + 4i| absolute value of a complex number