Given that ABC=DEF, AC=21x-19 and DF=3x+17, find the measure of AC? A. 2 B. 9 C. 21 D. 23

Sarita is selling lemonade in 400 milliliter bottles she made two batches of lemonade each batch made 16.3 liters of lemonade how much lemonade will she have left over after filling the bottles

Is the following sequence geometric? If so, what is the common ratio? 4, 2, 1, 1/2, 1/4 ...

Walter has life insurance policy with a $1.2 million benefit. If this money was put into an account with 4% interest rate, how much income can his beneficiaries expect in case Walter dies?

Let f (x) = 3x+5 and g (x) = x^2 find f (x). g (x)

Farah's mom told her she's thinking of a number that is a multiple of 12. What else can Farah say with certainty about the number her mom is thinking of?

A bag contains 5 blue marbles, and 3red marbles. A marble is randomly drawn from the bag. The probability of not drawing a black marble is. The probability of drawing a red marble is

If tan (theta) = 3/4 and theta is an acute angle, find cos (theta)

Which rational number equals 0.5?

On a piece of paper, use a protractor and a ruler to construct two equilateral triangles: one with a side length of 4 inches and one with a side length of 5 inches. Which statement is true about the two triangles?

Evaluate 12: (-6) (3) + (-2)