In volleyball , players serve the ball to the opposing team . if the opposing team fails to hit the ball , the services is called an ace . a player's ace average is the number of aces served divided by the number of games played . a certain player has an ace average of 0.3 and has played in 70 games this season .
how many aces has the player served ?

Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)