Compare the y-intercepts and the rates of change of the following items.
x
y
-2
7.75
-1 13.751
0
1
2
0.25
4.25
8.25
ii
a.
the items have different y-intercepts and different rates of change.
b.
the rates of change are the same, but the y-intercepts are different.
c. the y-intercepts are the same, but the rates of change are different
d. the items have the same y-intercept and the same rate of change.

i need points

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.

134.6 us dollars

step-by-step explanation:

1 us dollar = 1.33 canadian dollars

so, 150 us dollars = 150 × 1.33 = $199.5.

in canada, the money mitchell spent = 20 canadian dollars.

remaining canadian dollars with him = 199.5 - 20 = 179.5.

after mitchell returned to us, he exchanged the remaining canadian dollars to us dollars.

179.5 canadian dollars = 179.5 × 0.75 = 134.6 us dollars.