Answer:
b
Step-by-step explanation:
fairly certain it is b
The <em><u>correct answer</u></em> is:

Explanation:
To write a composite function, we apply one function to another given function. In this case, we want to find area in terms of time; this means that the function A(r) gets applied to the function r(t).
In order to do this, we replace r with r(t). We already know that r(t)=0.5+2t; this means we replace r with 0.5+2t:
A(r(t))=π(0.5+2t)²
To simplify this, we simplify the squared term:
A(r(t)) = π(0.5+2t)(0.5+2t)
A(r(t)) = π(0.5*0.5+0.5*2t+2t*0.5+2t*2t)
A(r(t)) = π(0.25+t+t+4t²)
A(r(t)) = π(0.25+2t+4t²)
69. The jacket is said to have an original price of 45.00 dollars.
Now, is was given a 25% off.
Solve for the final cost of the jacket after the discount is applied.
=> 25% = 25% / 100% = 0.25
=> 45.00 * .25 = 11.25 dollars is the discount.
Now, let’s subtract the value of 25% by the original value.
=> 45 – 11.25 = 33.75 dollars.
This is now the costs of the jacket after the discount is applied.
0.14x + 0.07(280-x) = 0.08*280
0.14x + 19.6-0.07x = 22.4
0.07x + 19.6 = 22.4
0.07x = 2.8
x = 2.8 / 0.07 = 40
x = 40 pounds of Soybean
280 -40 = 240 of cornmeal
Answer:
They all look right but i'm not sure about the last one?
Step-by-step explanation: