Mr. Jansen listened to 8 songs in 28 minutes. He later listened to 5 songs in 21 minutes. Determine whether the ratios are equivalent.

What do you need to know about a right triangle in order to use right triangle trigonometry?

He system of linear equations - 2x + y = 8 and - 3x - y = 7 is graphed below.

Last month you spend 30 dollars this month you spend 140 percent of what you spend last month set up a proportion to model this situation how much did you spend this month

Dividing fractions 4/6=2/3

The following statements concerning the location of an extreme value of a twice-differentiable function, f, are all true. Which statement also includes the correct justification? (A) The function has a maximum at x=5 because f' (5) = 0.

Solve |x - 1|>4 x x x

Who was the President in 1991?

Find the zeros of the function by using the Quadratic Formula: f (x) = X^2 + 7x + 9

Write a rotation vector that would rotate the plain green trapezoid onto the other plain green trapezoid (assuming the origin is where the two trapezoids meet). T = {a b c d} a=? b=? c=? d=?

The following are the temperatures of 10 days in winter in °C. -5, 2, 4, - 3, 7, 9, - 3, 0, 6, 2 Work out the mean temperature.