Melanie has 230 coins in her collection. 6 out of 10 of them are European. How many European coins does she have?

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe

Find the distance between c and d on the number line c=3 and d=11