Answer:
Q3: A
Q4: 9x² + (-x) + (-3)
Step-by-step explanation:
Q3: C (63) => x = 63. => C(x) = 36 x 63
Q4: f(x) + g(x) = 7x² - 5x + 3 + 2x² + 4x - 6 = (7x² + 2x²) + (-5x + 4x) + (3 - 6) = 9x² + (-x) + (-3)
69,017,409 is the correct answer
1. In a class of x children, 16 boys. What fraction of the class are boys.
2. Inside a stable there are h horses. 6 of them are taken out of the yard to exercise. How many are left in the stable.
3. There are b people on a bus. At the next stop, 7 get off and 10 more get on. How many people are on the bus now?
We set up the equation 580/4 = 725/x. Since we know these are proportional, we can cross-multiply and solve to get x = 5.
