in Nathan's pocket there nickels and quarters. There are three more nickels than twice the number of quarters. The coins amount to $2.60. How many quarters does Nathan have in his pocket? How many nickels does Nathan have in his pocket?

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is

4. (10.03 mc) the equation of line cd is y = −2x − 2. write an equation of a line parallel to line cd in slope-intercept form that contains point (4, 5). (4 points) y = −2x + 13 y = negative 1 over 2 x + 7 y = negative 1 over 2 x + 3 − 2x − 3