Cathay had saved $335. she spent $15 each week for guitar lessons. she now has $155. write an equation and solve to find out how many lesson cathay had.

Triangle xyz has vertices x(1,3), y(0,0)

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)