Tell if each is a solution to the equations (3, - 6) for 5x - y = 21

Write 7 & 4/5ths as a decimal.

Use the complex conjugate to find the absolute value of 8+12i A. 12 B. Square root of 208 C. Square root of 84 D. 8

What is 1.3:65 because I got 0.02? for my answer but, I think as known to me that is wrong?

If 10 millimeters (10 mm) equals 1 centimeter (1 cm), then 10 square millimeters (10 sq mm) equals: Select one: A 100 sq cm B. 0.10 sq cm C. 0.0010 sq cm D. 0.010 sq cm E. 1 sq cm

Write a number in scientific notation that is between 0 and 1/3. justify the response.

Lizzy has 30 coins that total $4.80. All of her coins are dimes, D, and quarters, Q. Which system of equations models this situation? 1) D+Q=4.80 .10D +.25Q = 30 2) D+Q=30 .10D +.25Q = 4.80 3) D+Q=30 .25D +.10Q = 4.80 4) D+Q = 4.80 .25D +. 10Q = 30

What is the answer to 23*-5

79.83 - 24.92 - 54.91

Mr. Williams owns a stable in the countryside. He created the expression below to represent the number of horses at the stable t years after he began boarding horses. Which statement below best describes the coefficient, 30? A.

The probability of drawing three jacks in a row from a standard deck of cards when the drawn card is not returned to the deck each time is