Answer:
-120 is a negative and 400 is a positive
Step-by-step explanation:
also there is a 520 difference
80.1 years, im not 100% sure of my answer though
Ok. You can use equations to find out what number of each meal was eaten.
x*14+y*17=99
If you solve for x and y (I used guess and check- there's only a few possible combinations) and got one chicken dinner and five steak dinners.
F(x) = 5(-3x) ^2 - (-3x) + 1
f(x) = -8x ^2 + 3x + 1
f(x) = -8x ^3 + 3x
