I assume you should set up an equation in y=mx+b form (but you use C(t) instead of y). m is your rate, b is your flat fee, and x is t.
Answer:
Step-by-step explanation:
D/4 - 3/4
I don’t know for sure though
Answer: 320 cents
Step-by-step explanation:
80/5 = 16
16*20= 320
Answer:
y = (-3/2)x + 4
Step-by-step explanation:
The slope of the given line is 2/3. The slope of any line perpendicular to the given line is the negative reciprocal of 2/3, which comes out to -3/2.
Now we have the slope of the new line and know that it passes through (0, 4). (0, 4) happens to be the y-intercept, b, in y = mx + b:
Substituting -3/2 for m and 4 for b, we get y = (-3/2)x + 4.
