H(t) = -(t – 7)^2 + 4
1) What are the zeros of the function?
Write the smaller t first, and the larger t second.
smaller t=
larger t=
2) What is the vertex of the parabola?
(___,___)

The graph below shows the amount of money left in the school’s desk fund, f, after d desks have been purchased. for each new desk that is purchased, by how much does the amount of money left in the school’s desk fund decrease?

If you answer right ill give brainliest, : )

How do you use the elimination method for this question? explain, because i really want to understand!