elena bought 49 packs of red balloons, 66 packs of blue balloons, and 35 packs of yellow balloons. each pack contains 12 gallons. How many balloons there altogether? How many more red were balloons were there than yellow balloons?

Estimate the product. round the first factor to the nearest whole number, round the second factor to the nearest ten, and then multiply. 3 8/9 × 96

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

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