Suppose your parents decide to give you $10,000 to be put in a college trust fund that will be paid in equally quarterly installments over a 5 year period. If you deposit
the money into an account paying 1.5% per quarter, how much are the quarterly
payments (Assume the account will have a zero balance at the end of period.)

answer: (1,3) and (-2,0) i think.

3.how is solving radical equations different than solving linear equations?

step-by-step explanation:

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.