A large balloon in the shape of a sphere is being filled with helium. The bloom has a radius of 1 foot. Helium cost is $.80 per cubic foot. What is the cost of filling the balloon with helium?

Ten times the square of a non-zero number is eqaul to ninety times the number

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu