The height of a tree is given by the equation y=20+5x where y is its height in cm and x is the number of weeks after the tree is planted. (a) Find the height of tree after 3 weeks and 5 weeks.

(b) What does y-intercept represent?

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x -4 0 for x? cos -3+ v (3) 2-4() 2(5) 3+ |(3)² +4() 205) 3+ (3) 2-4() -3+ v (3)² +4()

Katie wants to collect over 100 seashells. she already has 34 seashells in her collection. each day, she finds 12 more seashells on the beach. katie can use fractions of days to find seashells. write an inequality to determine the number of days, dd, it will take katie to collect over 100 seashells.