Hello,
Answer C
13*(12-3)+3*10=147
<h2>Question #22 Answer</h2>
B. 2 in.
<h3>Explanation:</h3>

Cross out the common factor

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<h2>Question #23 Answer (Picture attached)</h2>
D. proportional, equal
<h3>Explanation:</h3>

Δ
Δ × 



The unit price per kg is $5, to find this divide the 9 kilograms into the price $45 the answer is what each kilogram is worth
Answer
Q11 is 50,3
Q12, 23,19
Step-by-step explanation:
Recall the inverse function theorem: if f(x) has an inverse, and if f(a) = b and a = f⁻¹(b), then
f⁻¹(f(x)) = x ⇒ (f⁻¹)'(f(x)) • f'(x) = 1 ⇒ (f⁻¹)'(f(x)) = 1/f'(x)
⇒ (f⁻¹)'(b) = 1/f'(a)
Let b = 10. Then pick the function f(x) such that f(a) = 10 and f'(a) = -8 for some number a.