Which one you need help on
A. (a + b)(x) =a(x)+b(x) = 4x + 9+<span> 3x − 5 = 7x - 4
B. </span>(a ⋅ b)(x)= a(x)*b(x) =(4x + 9)( 3x − 5 )= 12x²+27x-20x-45 = 12x² +7x -45
C. a[b(x)] = 4(<span>3x − 5)</span> + 9 = 12x-20+9=12x-11
Answer:
a) 1.6 x 10 ^6 dollars.
Step-by-step explanation:
since President Ronald Reagan served for 8 years. So the total amount of money that he earned is 2 x 10^5 x 8 = 16 x 10 ^ 5 = 1.6 x 10^6 dollars.