Natalie spends 90 minutes doing her math and English homework. The time she spends on her math homework is a function of the time she spends on her
English homework.

8

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.

in total they made   333.74 your welcome : d

54 it just is

step-by-step explanation: