a) set a system of linear equations that can be used to solve

1)A total of $25000 is to be split among three different investments, each paying simple interest annually: high-yield bonds paying 9.5%, low-yield bonds paying 7%, and savings paying 2% interest.

If the investments are to earn a total of $1300 interest annually, and the total invested in bonds is to be $2000 more than the amount put in savings, how much of the $25000 should be placed in each investment?

2)A parabola passes through (-1,3), with derivative passing through (6,8), and maximum atx= 10. Find the equation of the parabola.