Questions in mathematics

Questions in mathematics

[Done] John is twice as old as his sister Jane. Four years ago, John was three times as old as Jane. What is John’s current age?

[Done] Six years ago, Anita was \( P \) times as old as Ben was. If Anita is now 17 years old, how old is Ben now in terms of \( P \)?

[Done] The width of a rectangular window is 2 feet more than its height. If the area is 35 square feet, what is the height of the window?

[Done] When [tex]16x^3 - 12x^2 + 4x[/tex] is divided by [tex]4x[/tex], the quotient is:

[Done] What is the period of the graph of the equation \( y = 3 \cos 2x \)?

[Done] What is \( \frac{20}{24} \) as a decimal and a percent?

[Done] Mathilde has 20 pints of green paint. She uses \(\frac{2}{5}\) of it to paint a landscape and \(\frac{3}{10}\) of it while painting a clover. She decides that for her next painting she will need 14 pints of green paint. How much more paint will she need to buy?

[Done] What is the value of the 1st quartile in the data set below? Scores on a math quiz: 65, 90, 100, 72, 88, 55, 73

[Done] Evaluate [tex]\log_{9} 27[/tex]. Can someone explain this to me so I can do similar tasks on my own?

[Done] What percent of 33 is 49.5?