Questions in mathematics

Questions in mathematics

[Done] Estimate the product of 496 and 351.

[Done] Simplify the expression shown below: \[(6a^4bc)(7ab^3c)\]

[Done] A bicycle has tires that are 24 inches in diameter. What is the circumference of one tire?

[Done] How many square numbers are in a pack of 52 cards?

[Done] What is 0.42, 3.47, and 3.74 in order from least to greatest?

[Done] If \( x \) is a real number such that \( x^3 = 729 \), then \( x^2 + \sqrt{x} \) equals what?

[Done] Solve the following by substitution: - \( x + y = 10 \) - \( x - y = 5 \)

[Done] Karen is 6 years older than Michelle, and Michelle is 2 years younger than their brother. The sum of their ages is 62. How old is Michelle?

[Done] The ratio of the side lengths of two regular hexagons is 3 to 7. If the area of the smaller hexagon is 18 square units, then the area of the larger hexagon is ________.

[Done] What are the values of \(a\) and \(b\) in the equation \(14b + 3a = 91\)?